A real sky. Real stars.
Pick your city and DuoFall computes the sky above it: the Milky Way, constellations and planets stand exactly where they stand tonight. And right in the middle, a DUOCLEAR wipes four lines in one strike.
One mind · Two fields · Many blocks
🌍 – lines cleared together by the community so far
Can you do it? Longer than your friends?
DuoFall is a falling-block puzzle with two playfields: pieces fall down from the top, and rise up from the bottom - and in between drifts the golden middle line when you play one-sided.
Up top you think downwards. Down below you think upwards.
A few runs in, you start thinking both ways at once.
That click in your head - that is what DuoFall is built for.
Pick your city and DuoFall computes the sky above it: the Milky Way, constellations and planets stand exactly where they stand tonight. And right in the middle, a DUOCLEAR wipes four lines in one strike.
Lock a piece on top and below almost simultaneously and the unison bonus pays out - true two-handed play. And the middle line remembers every one-sided habit.
The middle line is pushed to ▲8 and flashes red - one more one-sided piece and it shifts. Place cleanly under pressure and your pieces turn to gold, counting double when cleared.
Three moments from the alpha - clear night, sunset, and the endgame at the edge.
DuoFall is built to prove skill - one rung at a time.
Race yesterday's you in a ghost duel - same pieces, your own replay as the opponent. The most honest benchmark there is.
Share a seed as a challenge, fight live duels with your opponent's field right beside yours, meet in group rooms and tournaments up to 2v2 - whoever falls first gets to spectate.
The daily challenge gives everyone the same task, the community stacks lines toward one big goal - and the leaderboard does not lie: the server replays every run before it counts.
Play one-sided and it drifts against you. Pull it back with harmonies - clears in alternation, top and bottom.
Couch co-op and couch versus: split screen for 2-4 players, co-op on a shared field, hot seat and local tournaments. In versus your clears shift your opponent's middle line.
When building space gets tight, DuoFall rewards steady nerves: cleanly placed pieces turn to gold and count double when cleared.
The background is alive: waves, wind, rain, snow and time of day can follow the real weather outside your window.
Find out: a small circle is testing DuoFall while it grows - talking directly to the developer. Once a spot opens up you receive your access code plus one short mail per version. Rather just watch? Pick release news only: one mail for big milestones, never more. Double opt-in, unsubscribe link in every mail.
The Steam page is currently in review at Valve. The plan: Early Access on Steam in autumn 2026, the full version a few months later. If you don't want to miss the moment, sign up for release news above.
The alpha is free for testers. Early Access starts at a friendly price that rises moderately for the full version. The exact number isn't set yet.
Windows, macOS and Linux. The alpha already runs on one of our testers' Steam Deck. Mobile and consoles are on the radar, but only after the PC release.
There are many falling-block puzzles, and that's fine. What only exists here: two playfields at once, pieces that rise from below, and a middle line that reacts to your imbalance. A few runs in, your head starts thinking in both directions. That feeling is the point.
Yes, in several ways: live duels with your opponent's field beside yours, ghost duels against recorded runs (including your own), group rooms, tournaments up to 2v2, and local multiplayer on the couch: 2 to 4 players in split screen co-op or versus.
No. The game asks on first launch whether it may go online. Without consent everything runs fully offline. Going online adds the leaderboard, duels, the daily challenge and the community goal.
Godot 4 with C#, plus our own server for the online features. The leaderboard is verified server-side: every run carries its replay and gets re-simulated before it counts.
🎮 TESTER ZONE
Current alpha: v0.1.48 · free
Closed alpha: a small circle is testing right now. Want in? Apply above - we hand out spots in small waves and then send you your access code.
Unzip, run DuoFall.exe. If SmartScreen appears:
"More info" → "Run anyway" (the alpha is not signed yet).
The data_… folder must stay next to the EXE.
Always launch DuoFall.app — that is the only file you
need. (If an older package also contained a DuoFall.command:
that one is a terminal launcher, it does not work — just delete it.)
Unzip with Finder, then in Terminal: xattr -cr ~/Downloads/DuoFall.app
(adjust the path if needed). Then right-click the app → "Open" → "Open".
Required because the alpha is only ad-hoc signed.
If your Mac still says "cannot be opened" (happens on some
models, e.g. M2): run
codesign --force --deep -s - ~/Downloads/DuoFall.app
once (re-signs the app locally - takes 2 seconds), then right-click →
"Open" again. After that it starts normally with a double-click.
Unzip, then: chmod +x DuoFall.x86_64 && ./DuoFall.x86_64
- keep the data_… folder next to it.