Summer Coding Challenge 2026
Submissions from the contestants, shared with their permission — one prompt, one file, zero do-overs. Go have fun playing.
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Three flying laps · beat the ghost
APEX // QUALIFY
A formula-car qualifying sim on a fixed circuit. Bank a benchmark lap, chase your own ghost on lap two, then go for the session best — with live delta, sector splits and real surface physics.
←↑↓→ / WASD · R restart
Play APEX // QUALIFY -
Brick by brick · build the model
BRICKSMITH
A calm 3D building puzzle. Match 12 reference models across three difficulty levels, or switch to free build with 15 piece types and 11 colors — undo, redo and save slots included.
Click & drag to place, rotate and remove bricks
Play BRICKSMITH -
Time the takeoff · stick the landing
TELEMARK
A stylized 3D ski-jumping sim. Dial in your gear, read the wind, commit off the table, and hold your form through the flight to land clean.
Space action · WASD balance · Esc pause
Play TELEMARK -
Write the function · win the race
RYCHLE A FUNKČNĚ
Math as a racing game: there's no track, just gates scattered across a graph. Write the function that threads them all — the shortest curve wins, so a flat parabola beats a wobbly sine wave.
Type a function · Enter to race · R restart
Play RYCHLE A FUNKČNĚ -
Every death leaves a bridge
REMNANT
A 2D puzzle-platformer across 10 levels. Each time you die, your body stays behind as a solid platform — use your remnants to reach further on the next attempt.
AD move · Space jump · R reset
Play REMNANT -
4,500 years old · still cutthroat
THE ROYAL GAME OF UR
A faithful build of the oldest known board game. Roll four binary dice, race seven pieces down a shared middle row, land on rosettes for another turn, and send the opponent's pieces all the way home when you catch them.
Click Roll, then click a highlighted piece to move it
Play THE ROYAL GAME OF UR -
Match four corners · never repeats
QUADBLOOM
A single-file logic puzzle. Drag a rectangle between two same-colored cells to bloom everything inside it, permanently reshuffling the colors by a seeded hash so no cycle ever repeats. Four escalating stages, every board guaranteed solvable.
Drag between two same-colored cells to bloom them
Play QUADBLOOM -
Loot the district · shoot the dead
DEAD ZONE
A first-person survival looter-shooter. Freely explore a small city district, scavenge weapons and intel from the buildings, and fight the zombies and raiders already roaming the streets — no wave timer, just you against what's out there.
WASD move · mouse look/shoot · R reload
Play DEAD ZONE -
5 levels · blind until you ping
SONAR MAZE
A blackout maze crawler. Walls, batteries and exits stay invisible until you fire a sonar pulse that briefly lights them up and freezes any hunter it touches — spend pulses wisely or get caught in the dark.
WASD / arrows move · Space pulse
Play SONAR MAZE -
Lasso the shapes · dodge the bombs
PASTEL RUSH
A pastel Canvas minigame about catching falling shapes. Draw a lasso around triangles and squares to score and refill energy — but the line itself costs energy by length, and a stray bomb drains it fast.
Click & drag / touch — draw a lasso around shapes
Play PASTEL RUSH -
Stack it · clear it · hold for later
NEON TETRIS
A neon-lit take on the falling-block classic. Soft-drop or hard-drop, hold a piece for later, and line up the ghost piece before the board fills up.
←→ move · ↑/Z rotate · ↓ soft drop · Space hard drop · C hold
Play NEON TETRIS -
Snake, reversed · outrun the notebook
SVAČINA
Snake flipped inside out: you're the apple, fleeing a snake sketched in a school notebook. Draw decoy apples to grow it elsewhere, dodge ink blots and lunges, and survive as long as you can — your grade is your score.
Mouse / touch / WASD or arrows · P pause
Play SVAČINA -
Spot it · remember it · report it
DON'T LOOK AWAY
A night-shift CCTV observation game. Anomalies creep into the room you're monitoring — find one, remember where it was, and report it before staring too long maxes out your exposure meter.
Click to inspect & report an anomaly's location
Play DON'T LOOK AWAY -
Plant seeds · let Conway do the rest
BLOOM
A puzzle built on Conway's Game of Life. Place a limited number of seeds, hit Grow, and let the rules run untouched — win the instant every marked bud is alive in the same generation. Six levels, each guaranteed solvable.
Click cells to seed, then hit Grow
Play BLOOM -
Steal a shadow · settle its price
VESPER — Zloděj stínů
An atmospheric Art Nouveau RPG. Explore a city trapped before dawn, hunt down your stolen shadow, and use three shadow powers — dodge, shield, slow time — while deciding what borrowing, or stealing, other people's shadows costs them.
WASD move · click/Space attack · F ability · E interact
Play VESPER
Two examples, same recipe
Each was generated from one prompt and shipped as a single file. Click through and play them.
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Drop bombs · break walls · survive
BLASTMAN
A single-screen Bomberman for one or two players. Trap the enemies (or each other) in the blast, grab power-ups, clear the board.
P1 WASD + Space · P2 arrows + Enter
Play BLASTMAN -
One button · keep running
LEAP
An endless one-button runner. Time your jumps and double-jumps over the gaps and spikes while the speed keeps climbing.
Space / click / tap — that's the whole game
Play LEAP