


Voa baixo sobre os grandes rios do mundo, abate navios, helicópteros e caças, faz explodir as pontes, reabastece sobre os depósitos e aterra na pista no fim do rio. Inclina o relógio para pilotar, ou usa os botões ou o dedo; o avião dispara sozinho.
GRÁTIS
- Dois rios do mundo: o Vltava e o Danúbio, em todas as dificuldades
- O rio do dia: um novo todos os dias, igual para todos, com classificação online
- Estatísticas: distância voada, quedas, aterragens e tudo o que abateste
RIVERSTRIKE+
2,99 USD uma única vez, sem subscrição, sem conta
- Mais 26 rios, cada um com a sua surpresa: crocodilos no Amazonas, mistral no Ródano, noite no Mekong, uma ponte levadiça no Tamisa, uma barragem no Yangtzé, rápidos no Congo, meteoritos sobre o Ienissei e mais
- Voo livre: um rio sem fim enquanto durar o combustível
EM CADA RIO
- Até três estrelas em cada uma das três dificuldades, 252 estrelas no total
- Rios de 10, 15 ou 20 pontes
- Cada região do mundo tem os seus barcos, casas e rochas
- Classificações online: só um nome e a pontuação saem do relógio, e podes desligá-las
Compra no próprio relógio: carrega em START num rio bloqueado, abre kzl.io/code no telemóvel e escreve o código do relógio. Os pagamentos são feitos pela KiezelPay.
Para relógios Garmin redondos: fēnix 7 Pro, 8 e 9, epix, Forerunner 165 a 970, Venu, vívoactive, Instinct 3 AMOLED, D2, Descent e MARQ. Jogo arcade em 19 idiomas. Dúvidas: prezek@seznam.cz
1Do que se trata
Voas rente a um rio, abates tudo o que te aparece à frente e vais de olho no combustível. No fim do rio aterras na pista.
Esperam por ti 28 rios verdadeiros do mundo, do Moldava ao Amazonas e ao Yangtzé. Cada um tem a sua surpresa: crocodilos, noite, vento, rápidos, uma ponte levadiça ou uma barragem. Cada região do mundo tem os seus próprios barcos, casas e rochas.
Cada rio dá até três estrelas em cada uma das três dificuldades. E todos os dias há um novo rio do dia, igual para todos os jogadores, com classificação online.

2Como jogar

Segura o relógio
Antes de começar, segura o relógio como vais jogar. O jogo assume essa posição como nivelada.

Inclina para pilotar
Inclina o pulso para a esquerda ou para a direita. Os botões CIMA / BAIXO também funcionam.

Ou usa o dedo
Nos relógios táteis, mantém o dedo na metade esquerda ou direita do ecrã.

Dispara sozinho
O jato dispara sem parar. Tu só apontas e manténs-te longe das margens.
START põe o jogo em pausa, BACK põe em pausa e depois sai. O tutorial do primeiro voo está sempre em Definições → Como jogar.
3Combustível, pontes, aterragem, estrelas
Tens três vidas por rio. Perdes uma se bateres na margem ou num inimigo, ou se ficares sem combustível. Depois de caíres, recomeças no início do troço, com três segundos de calma.


4O mapa e as regiões
Rios do mundo no menu principal abre o mapa. Escolhe um rio a deslizar o dedo ou com os botões; os rios bloqueados têm um cadeado. START mostra o cartão do rio: as pontes, o que te espera e as tuas estrelas.
Os rios estão divididos em sete regiões: Europa Central e Ocidental, o Norte, a Ásia, a África e o Médio Oriente, as Américas e a Austrália. Cada região tem o seu próprio aspeto de barcos, casas e rochas; comportam-se todos da mesma maneira.


5O rio do dia e a classificação online
O rio do dia muda à meia-noite UTC e é igual para todos. Depois de aterrares, vês em que lugar ficou este voo e em que lugar está o teu recorde. CIMA no cartão do rio abre a classificação completa.
Cada rio e o Voo livre também têm classificação. Na web estão em leaderboard.petrrezek.net.
Do relógio só saem um apelido, um ID de jogador aleatório e o resultado. Define o apelido em Definições → Apelido no relógio ou na app Connect IQ, onde também podes desligar a classificação.


6Estatísticas
Menu principal → Estatísticas tem quatro páginas: distância e tempo de voo, voos, quedas por causa, combustível e os pontos que deu, o que abateste, aterragens e pontes. Muda de página com os botões ou a deslizar o dedo.

7Definições
| Opção | O que faz |
|---|---|
| Dificuldade | Fácil, normal, difícil: pontes, velocidade e depósito. |
| Extensão do rio | 10, 15 ou 20 pontes. |
| Controlo por inclinação | Ligado: pilotas com o pulso. Desligado: só botões e toque. |
| Sensibilidade | Baixa, média, alta. |
| Ajuda nas margens | Um empurrão suave para longe das margens. Bom para começar. |
| Velocidade por inclinação | Inclinar para a frente e para trás muda a velocidade. |
| Sons | Sinais sonoros no arranque, ao abastecer, nas pontes, nas quedas e na aterragem. |
| Modo económico | Menos efeitos para o jogo correr mais fluido em relógios mais lentos: sem pontos a flutuar, explosões mais curtas, menos riscos no vento e nas tempestades de areia, e o sensor de inclinação é lido menos vezes. O jogo em si fica exatamente igual. Desligado por predefinição. |
| Classificação online | Envia os resultados. Ligada por predefinição. |
| Apelido | O teu nome na classificação, escrito no teclado do relógio. |
| Como jogar | Mostra outra vez o tutorial do primeiro voo. |
8Riverstrike+ e como o comprar
| Grátis | Riverstrike+ | |
|---|---|---|
| Moldava e Danúbio | sim | sim |
| O rio do dia e a classificação | sim | sim |
| Estatísticas e definições | sim | sim |
| Mais 26 rios | – | sim |
| Voo livre | – | sim |
- Carrega em START num rio bloqueado.
- O relógio mostra um código. Abre kzl.io/code no telemóvel e introduz o código.
- Paga 2,99 USD (uma só vez, sem subscrição, sem conta).
- Em menos de um minuto o jogo fica desbloqueado e continua assim, mesmo sem ligação.

9Perguntas frequentes
O relógio mostra um erro de ligação ou -104.
O relógio não consegue chegar ao telemóvel. Abre a app Garmin Connect no telemóvel, espera que o relógio se ligue e tenta outra vez.
Paguei, mas os rios continuam bloqueados.
Deixa o jogo aberto no ecrã do código até desbloquear. Também dá mais tarde: carrega outra vez em START num rio bloqueado.
O jato desvia-se sozinho para o lado.
No arranque seguravas o relógio de outra maneira. Põe em pausa e retoma, e o jogo assume uma nova posição nivelada. Uma sensibilidade mais baixa também ajuda.
Não apareço na classificação.
O resultado é enviado quando o relógio se liga ao telemóvel. Confirma nas definições que a Classificação online está ligada.
O jogo engasga-se no meu relógio.
Liga Definições → Modo económico. Tira efeitos de que o jogo não precisa e a imagem fica mais fluida. As regras, os pontos e as estrelas não mudam.
Quanto dura um rio?
Com 10 pontes, cerca de um a dois minutos. O rio do dia tem 6 pontes.
O registo de alterações está em inglês.
Riverstrike – changelog
1.0.0 2026-09-27
- First release: 28 rivers of the world, the daily river with online leaderboards, three difficulties, statistics and 19 languages.
0.10.6 2026-09-26 (beta)
- Fixed: after returning from the settings the river no longer shows black for a moment.
- With the online leaderboard on, results also say whether Riverstrike+ is unlocked.
0.10.5 2026-09-26 (beta)
- Faster drawing of new landscape rows and of the fuel gauge.
0.10.4 2026-09-26 (beta)
- Faster drawing of the score, fuel and progress bar: the progress arc is no longer redrawn every frame, the score refreshes at most 4 times a second while refuelling, and the overlays are smaller.
0.10.3 2026-09-26 (beta)
- The speed measurement sent with results now splits the drawing into the landscape, moving objects and the HUD.
0.10.2 2026-09-26 (beta)
- With the online leaderboard on, the result now also carries how long the watch takes to draw a frame and to compute the game, so we can see what slows the game down on which watch.
0.10.1 2026-09-26 (beta)
- NEW: Power saving in the settings (off by default): fewer effects for smoother play on slower watches – no floating points, shorter explosions, fewer streaks in wind and dust storms, the tilt sensor read less often. The game plays exactly the same.
0.10.0 2026-09-26 (beta)
- Riverstrike+: Vltava, the Danube, the daily river, statistics and the map stay free; the other 26 rivers and Free flight unlock with a one-time purchase (KiezelPay: a code for kzl.io/code on the phone, the watch unlocks itself). The beta listing uses the free test product.
- A short tutorial before the first flight: steering (tilt, buttons or touch – whatever the watch has), shooting, fuel and landing. Settings -> How to play shows it again.
0.9.9 2026-09-26 (beta)
- Every region of the world has its own look: ships, houses, rocks, helicopters and fighters differ by the country (junks in Asia, feluccas on the Nile, paddle steamers on the Mississippi, log cabins in the north…). They behave and score exactly as before; your jet is the same everywhere.
0.9.8 2026-09-26 (beta)
- A new nickname shows on the leaderboard right after you save it (when the watch is connected to the phone).
0.9.7 2026-09-26 (beta)
- The third star needs 5 % more points (refuelling scores now).
- Statistics: points from refuelling.
0.9.6 2026-09-26 (beta)
- Refuelling scores: 2 points for every 1 % of fuel you tank (nothing with a full tank).
0.9.5 2026-09-26 (beta)
- After a flight you see this flight's place on the leaderboard and your record's place next to it; a new record says so.
0.9.4 2026-09-26 (beta)
- With a result the watch now also sends how the flight went (where and why a life was lost, the bridges reached), the control settings and the watch language. It helps tune the difficulty of the rivers.
- A flight left from the pause after more than 5 seconds counts as a result too.
0.9.3 2026-09-26 (beta)
- The online leaderboard is now on by default (turn it off in the settings). The web board shows each player's country and can be filtered by country; the server takes only the country from the IP address.
0.9.2 2026-09-26 (beta)
- The nickname is typed on a keyboard: tap a letter (or move with UP/DOWN and press START). Bigger keys, A–Z on the first page, digits and accents on the next ones.
0.9.1 2026-09-25 (beta)
- NEW: set your leaderboard nickname right on the watch (Settings → Nickname): a letter wheel in the game's font.
- After landing, your place on the leaderboard now shows above the Continue button; on round displays of 390 px and less it did not fit below it.
0.9.0 2026-09-25 (beta)
- Online leaderboards: turn on "Online leaderboard" in the game's settings (on the watch, or in the Connect IQ app on your phone, where you also pick a nickname) and after every fair flight your result goes to leaderboard.petrrezek.net. After landing or game over you see your place; UP on the river card shows the top players and where you are. Nothing leaves the watch while it is off; results wait on the watch when the phone is away.
- The daily river now changes at midnight UTC, so everyone in the world flies the same river on the same day.
- Yangtze: the dam opens when you destroy any one of its gates (all three were needed before, which there was hardly time for).
- Glance: the game in the glance list shows your best score and your stars.
- New icon.
- Fixed: the Forerunner 265S ran out of graphics memory; the accelerometer is read less often on every watch but the fēnix 8 (the reason for the vívoactive 6 restarts); meteorites now fall where the plane will be and respect "collisions off"; a crash just past a bridge no longer takes you back before it; statistics are saved when a setting ends a flight; the Thames bridges count as bridges; changing the river length returns to the menu.
0.8.2 2026-09-25 (beta)
- Thames: the raising bridge has two leaves; as you come close one of them rises and a green light shows which side to fly through (earlier on easy, later on hard).
- Shots fly over fuel depots, so the automatic fire no longer blows up the fuel you need.
- Fixed on vívoactive 6: the river, banks and bridges stayed black (the landscape is now kept in smaller pieces the watch can draw), and the watch restarted after a few minutes with tilt steering on (the accelerometer is now read less often; on all watches but the fēnix 8, to be safe).
- Fixed: a black band that sometimes crossed the river behind the title menu.
0.8.1 2026-09-25 (beta)
- River map: flags that do not fit one row (the Danube has ten) go on a second row instead of overlapping, and on small displays the card moves up so the stars stay inside the round screen.
0.8.0 2026-09-25 (beta)
- 15 new rivers, 28 in all, each with its own twist: the Danube delta, Volga tankers (three hits), the Vistula dragon breathing fire across the river, Seine stone bridges to fly through an arch, Ganges lamps to collect, Irrawaddy dolphins (do not hit them), Congo rapids, Zambezi hippos, a Tigris sandstorm, Yenisei meteorites, Mackenzie ice-road trucks, Rio Grande dust devils, Orinoco flocks, floating islands on the Paraná and Murray sandbars. All on the world map with their courses and flags.
0.7.1 2026-09-25 (beta)
- Gentler river: bends are a third softer, the river no longer squeezes suddenly before a bridge (it narrows over at least eight rows and islands end before that), and islands start later, so nothing grows under the plane at the start of a section.
- Statistics: UP and DOWN switch the pages. The rivers look a little different, and the score for the third star changed slightly on some of them.
0.7.0 2026-09-25 (beta)
- Stars for every difficulty: easy (green), normal (gold) and hard (red), 117 stars on 13 rivers. The map card shows all nine, the card before a river the ones of your difficulty. Stars from before count as normal.
- River length in the settings: 10, 15 or 20 bridges. The score for the third star grows with the length.
- Statistics in the title menu: distance, time in the air, flights, rivers finished, longest flight, refuelling, crashes by cause, everything shot down, landings and their precision, stars per difficulty and your best score. Saved after every flight.
0.6.0 2026-09-25 (beta)
- Any round display: the game now runs on 44 watches from 360 to 466 px (fēnix 8 and 9 in every size, epix, Forerunner 165 to 970, Venu 2 to 4, vívoactive 5 and 6, Instinct 3 AMOLED, MARQ, D2, Descent). Menus, the map, cards and the HUD are laid out for the display; on a smaller one you see the middle of the river.
- The first 3 seconds of a flight, and after every crash, nothing stands in your way.
0.5.1 2026-09-25 (beta)
- More watches: fēnix 8 Pro, fēnix 9 and fēnix 9 Pro 47 mm, epix Pro 51 mm, Forerunner 965, 970 and 570 47 mm, D2 Mach 2 and Descent Mk3i 51 mm (every round 454 px AMOLED watch with five buttons).
0.5.0 2026-09-25 (beta)
- The game speaks 19 languages: English, Czech, German, Dutch, Finnish, French, Croatian, Hungarian, Italian, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish and Ukrainian. The pixel font got accents for all of them and Cyrillic; rivers go by their local names (Moldau, Rhein, Янцзы…).
- Settings: the player's ones come first (difficulty, tilt, sensitivity, bank help, speed by tilt, sounds); the testing ones are marked β and will not be in the store version.
0.4.0 2026-09-25 (beta)
- The river map is now a map of the world: every river drawn along its real course, the plane over the chosen one, and a card with the flags of the countries it runs through, its length and your stars. Europe's five rivers are shown closer up (setting "Zoom in on Europe").
0.3.2 2026-09-25 (beta)
- Gentler bends: the river turns at most three quarters of a pixel sideways per pixel forward, so it can be flown by tilting.
- Fixed: shots sometimes flew through a ship, a helicopter or a jet. A shot covers over 30 px a frame and could jump over a target 20 px tall; now the whole path since the last frame counts.
0.3.1 2026-09-25 (beta)
- Tilt calibration: after the start, a pause and a crash the game waits 1.2 s ("hold the watch the way you will play") and averages the neutral position from fresh readings. Before, it could take an old reading from the last flight and the plane turned straight into the bank.
0.3.0 2026-09-25 (beta)
- New title menu: Rivers of the world (with how many you have finished), Daily river, Free flight (with your best score) and Settings. UP and DOWN choose, START or a tap confirms.
- River map: the rivers wind up the display with their stars; swipe or UP / DOWN to scroll, START opens the river.
- Before every river a card with a short hint of what waits there, the number of bridges and your stars.
- In flight an arc on the upper right shows how far it is to the finish.
0.2.6 2026-09-25 (beta)
- Easier tilt steering: a gentle push back to the water near a bank or an island (new setting, on by default, stronger on easy), and calmer turning by tilt.
- Rhône: gusts swell and die away instead of hitting at once, and they are weaker (easy 45, normal 70, hard 100 px/s instead of 125).
0.2.5 2026-09-25 (beta)
- Each sound has its own tone: start of a flight, refuelling (low beep), bridge, low fuel, crash, game over, touchdown, stars. The tone now plays before the vibration, which could swallow it.
- Rhône: a tone warns a second before each gust of wind.
0.2.4 2026-09-25 (beta)
- Sounds only from tones the fenix 8 plays: refuelling and stars a high alert, a bridge the lap tone, crash and low fuel a loud beep, touchdown the success tone. The key click is gone (it follows the watch's key tones setting). The Sound test goes through all 19 tones of the watch.
0.2.3 2026-09-25 (beta)
- Sounds now use the watch's own tones: the fenix 8 plays them, but stayed silent for the game's own tunes. The Sound test plays the game's sounds one by one.
0.2.2 2026-09-25 (beta)
- Sounds: every tone is now at least 90 ms long (the shorter ones may not play on the watch speaker), a failed tone no longer silences the game, and a new Sound test item in the settings plays the watch's own beep, then a tune, and shows what happened.
0.2.1 2026-09-25 (beta)
- Easier tilt steering: gentle for small tilts, full turn only near the end; the neutral position slowly follows how you hold the watch, so the plane does not creep.
- New settings: tilt sensitivity (low, medium, high) and speed by tilt (off by default: a steady speed, you only steer).
- Landing help on easy and normal: just before touchdown the plane is gently pulled to the centre line, and the landing zones are wider.
- Sounds: refuelling, hits, destroyed bridges, crash, low fuel, touchdown and a chime for every star. Can be turned off in the settings.
0.2.0 2026-09-25 (beta)
- Rivers of the world: choose a river in the settings (hold UP, then River). Vltava, Inn, Amazon, Colorado, Yukon, Rhine, Rhône, Mekong, Nile, Thames, Hvítá, Mississippi and Yangtze, each with its own landscape and one thing that changes how you fly: balloons, diving crocodiles, rocks, ice floes, castle guns, side wind, night, mirages, raising bridges, geysers, fog and barges, a dam. Free flight is the endless river from before; the daily river is different every day.
- A river ends with a landing: behind the last bridge an airfield, approach lights and the plane's shadow; land on the centre line for a bonus. Then fuel and landing turn into points and you get up to three stars.
- Difficulty setting (easy, normal, hard) and, for testing, short rivers with 3 bridges.
- Fuel guarantee: no more than about 11 s without a fuel depot.
0.1.8 2026-09-25 (beta)
- Hot-air balloons from the fourth bridge on. They drift slowly across the river and over the land too (60 points).
- Snowy mountains on the wider banks instead of the scattered houses. Houses stay by the road at the bridges.
0.1.7 2026-09-25 (beta)
- New setting "Start from bridge" (1, 2, 3, 5, 8, 10, 15, 20) to try the harder parts of the river straight away. A game that doesn't start at bridge 1 doesn't count toward the best score.
0.1.6 2026-09-25 (beta)
- Settings on the watch: hold UP on the title, pause or game over screen, or tap SETTINGS at the bottom. Tilt steering, debug line, and for testing: fuel use, collisions with enemies and bridges, collisions with the banks. The choices are remembered.
0.1.5 2026-09-25 (beta)
- Tilt steering can be turned off: press DOWN on the title or pause screen, or tap the bottom line there. With tilt off you steer only with the buttons and the screen halves, so an accidental wrist movement no longer throws you into the bank. The choice is remembered.
0.1.4 2026-09-25 (beta)
- After a crash you no longer fly straight into an island: every section now starts with a calm straight stretch behind the bridge, with no island or enemies for the first two seconds.
0.1.3 2026-09-22 (beta)
- Faster still: the accelerometer is read every other frame (13 ms per read on a fenix 8) and the sprites use a palette with a transparent index instead of an alpha channel (about 2.5 ms per sprite).
0.1.2 2026-09-22 (beta)
- Faster again: the score and the fuel gauge are drawn only when they change, and the game logic does less work per frame (0.1.1 ran at 11 fps).
- The debug line shows where each frame spends its time.
0.1.1 2026-09-22 (beta)
- Much faster drawing: the landscape is drawn once and scrolled (0.1.0 ran at about 4 fps on a fenix 8).
- Debug lines moved under the score, off the fuel gauge.
0.1.0 2026-09-22 (beta)
- First beta: playable prototype for the fenix 8 AMOLED 47/51 mm. River generated section by section with bridges as checkpoints, helicopters, ships, jets, fuel depots, tilt / button / touch steering, auto-fire, three lives, best score.






