Cosmos
Glowing glass blocks drifting through a deep-space nebula.
Falling-block puzzle · Coming soon
Quadrafallby Sudarev
A beautiful falling-block puzzle with themes that change the whole look and feel. Clear lines, chase records, relax in Zen. Free forever — no ads, no in-app purchases, no tracking.
0 $price, forever
0ads and video breaks
0trackers
Coming soon toGoogle Play
Coming soon toApp Store
Themes
One game, many worlds
Each theme restyles the blocks, the board, the sounds and the mood. Switch any time in settings.
Retro 8-bit
The green glow of a classic handheld, pixel by pixel.
Notebook
Pencil sketches on squared paper, like the back of a school notebook.
more comingMore themes and block skins are on the way after launch.
Modes
Play your way
Marathon
The classic climb: levels speed up as you clear lines. How far can you go?
Sprint
Clear 40 lines as fast as you can. Every millisecond counts.
Zen
No timer, no game over. Just you, the blocks and calm music.
Why Quadrafall
Made with care, not with ads
Completely free
The whole game, right away. No purchases, no locked modes, no energy timers.
No ads, no tracking
No banners, no “watch a video to continue”. Your progress stays on your device.
Modern, fair controls
Hold, next-piece preview, ghost piece and a fair random bag of pieces, tuned for touch.
English and Russian
The game picks your device language automatically, and you can switch it in settings.
Coming next
Two players, any connection
Head-to-head battles are in the works — free, like everything else. The game will pick the best way to connect on its own.
Same Wi-Fino internet needed
Phone hotspotplay anywhere, even outdoors
Direct, nearbyphone to phone, no router
Onlineinvite a friend by code, QR or link
Support
Questions, bugs, ideas?
Write to us — a real person reads every message. Ideas for new themes and modes are very welcome.
support@sudarev.app