Hill Racers
Climb the hills without flipping. Fall behind and you are out.
1–8 playersPuff River: the co-op raft game where every phone is one puff
One raft, one button each. Puff the wrong way and everybody sinks.
The whole party rides the same raft down a snaking river. Every phone has a single PUFF button, and your puff shoves the raft away from wherever you are sitting — so steering is something the room does together, or not at all.
- 1–8 players
- Co-op
- Party Game
- Physics
- 3D
How to play Puff River
1–8 players · PUFF (hold) · no download
Join the Game
Scan the QR code on the Game Screen with your phone to join as a player. Everyone lands on the same raft — there are no teams and no turns.
Hold PUFF
Your phone has one button and you hold it rather than tap it. The catch: you blow outward, so the raft goes inward. Sit on the right of the raft and your puff shoves it left.
Watch Your Seat
Seats sit in a ring that turns slowly, so everyone drives every position over a round. On the side of the raft your puff steers hardest; at the front or back it is pure brake or throttle.
Reach the Flag Together
Spiked mines end the round for the whole party instantly. Buoys, rocks and the banks only shove you and add a bump. Cross the finish line and everybody wins at once.
About Puff River
Puff River is the first fully 3D game in the LanPlay collection — a real three.js river with terraced banks, drifting fog and a chase camera that eases behind the raft, rendered behind the same party HUD every other game uses.
Play Puff River instantly in your web browser — no downloads, no installations. Everyone uses their own smartphone as a controller and plays together on one screen.
If you like Fart Together, this is the party version — same idea, up to eight phones, nothing to install.
Game details
| Players | 1–8 players |
|---|---|
| Genre | Co-op, Party Game, Physics, 3D, Casual, Multiplayer |
| Controls | PUFF (hold) |
| Round Length | About 58 seconds for a clean run |
| Scoring | Co-op — a shared win or loss, nobody is ranked |
| Price | Free to play |
| Platform | Web browser (no download required) |
| Release date | 2026 |
Puff River FAQ
The questions people ask before the first round.
Is Puff River like Fart Together?
The idea is the same — a group sharing one raft and steering it by blowing in the opposite direction — and if that is what you came for, Puff River does it. The differences are practical: Puff River is free, runs in a browser with phones as controllers, and seats up to eight people in one room. Fart Together is a paid Windows game on Steam with a download per player and a co-op mode built for two to four.
Is there a free version of the hippos-on-a-boat game?
Puff River is the closest free one. It is not the same game and it has no hippos — your LanPlay character sits on the raft instead — but it is the same shared-raft, blow-the-wrong-way co-op, free in any browser with nothing to install on anyone's phone.
Why does my puff push the raft the wrong way?
That is the game. A puff pushes along the line from your seat through the middle of the raft, so you are always shoving it away from yourself. It also means a party where everyone puffs at once cancels itself out completely — the raft neither turns nor speeds up. Working out who should stop is most of the skill.
Can one person play Puff River alone?
Yes. Solo you are pinned to one side of the raft so you always have full steering, and the river is the same length. It plays as a dodge-the-spikes run rather than a coordination problem, and it is the quickest way to learn the course before a group arrives.
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