Umbraform
Two shadows. One shape. Work out what casts both.
Free 3D shadow puzzle game. Build a shape that casts the right silhouette from every side. 60 levels, no download, play in your browser.
Three-to-five-minute rounds that survive a Slack ping.
Between meetings, stuck on a call, waiting on a build — sometimes you need three to five minutes of something that isn't email. These are the games in our catalog that fit a real work break: each loads instantly in your browser (no install, no login), plays a full round in under five minutes, and pauses cleanly the moment a notification pops up.
Two shadows. One shape. Work out what casts both.
Free 3D shadow puzzle game. Build a shape that casts the right silhouette from every side. 60 levels, no download, play in your browser.
Run the belt. Feed the rush.
Free browser arcade game. Run a conveyor sushi bar — tap the right dish to each customer before their patience runs out. No download.
Falling letters. Stack them into words.
Free daily word game. Letters fall like Tetris blocks — place them to spell words, clear lines and chain combos. Same board for everyone.
Slide them back. Par says how few.
Free sliding puzzle game with a real par for every board. Daily 4x4 challenge plus 17 levels from 3x3 to 5x5. Play free in your browser, no download.
Nine holes. One shot at the day.
Free daily mini-golf puzzle. Everyone plays the same nine-hole course each day — slingshot aim, streaks, one shot at the leaderboard. No download.
Spell fast. Score big. Beat the clock.
Play Letter Run free in your browser — race to build high-scoring words from a shrinking 5×5 letter grid. New daily puzzle, share your emoji grid.
Find the four hidden groups.
Free daily word puzzle. Sixteen words, four hidden groups of four. Four wrong guesses and you're out. New puzzle every day, no download.
Same crypt. Every death is a lesson.
Free daily roguelike in your browser. Same dungeon for everyone, every day — turn-based tactics, permadeath, unlimited runs, ten floors to the way out.
Grass strips. Crossing runways. One aircraft at a time.
Free air traffic control game. Sequence arrivals and departures across four airfields, stack traffic by altitude, keep the runway clear. Play free, no download.
They come in thousands. Hold the line.
Free browser swarm survival game. Hold a line of troopers against thousands of enemies, chain bloater detonations, and break the Hivemother. No download.
Defend the colony. Repel the swarm.
Free browser tower defense. Deploy Marines, Demolishers and Plasma Gunners to hold an alien world against endless waves. No download.
We kept the longer-session games out. You won't find our tycoon sims or 3D driving games here — those pull you in for twenty minutes and leave you staring at the project board at 4pm. Everything below gives you a satisfying start-to-finish loop that survives interruption, resets on a tap, and won't drain your battery in a meeting room.
Five of the eleven are dailies, which is the format that suits a break best: one puzzle, the same for everyone, done before the coffee is. Daily Links is nine holes of mini-golf with slingshot putting. Tilefall is a ninety-second word round. Cluster Hunt is sixteen words hiding four groups, in the vein of Connections. Cryptling is the outlier — a turn-based dungeon with permadeath and unlimited retries, where a run is two to five minutes and every death teaches you the same day's layout. Slipframe is a sliding-tile board scored against a provably optimal par, which makes it the one that fits inside a break and then follows you back to your desk.
Hold Short is the one with a clock built in. It is air traffic control on a grass aerodrome — tap an aircraft, give it a runway, and it flies the approach itself while you work out the order everyone else goes in. Its Daily Shift runs exactly six minutes and then stops, which is about the most break-shaped thing a game can do.
The other five are played for a score, with one exception. Umbraform is the exception: sixty levels of building a shape out of blocks to match the shadows it has to cast, one from the front and one from the side, with a plan view on the floor from level six. Depth is invisible in a shadow — a whole row of blocks behind one another leaves a single square — so the puzzle is reading two flat views against each other. Each level has a block budget, and beating it means finding a cleverer shape rather than a bigger one. The other four are score chases. Kaiten Tap is a conveyor sushi bar where you tap the dish each customer ordered before their patience runs out. Letter Run chains letters under time pressure. Swarmline is a count-runner: your squad charges an endless ramp through gates that multiply or subtract soldiers, and a run ends the moment the squad is wiped, so it is as short as you need it to be. Turret Siege is the one that scales up if the break runs long.
One thing worth knowing: ten of the eleven track a daily personal best, so if you play a couple of breaks a day you are competing against yesterday's you — a little stickiness without being a time-sink. Umbraform is the one that does not, because it has levels to solve rather than a score to beat; it remembers how far you got on the device you played on. And all of them work on phone and desktop, so your lunch-time round on mobile shares the same leaderboard you played from your laptop that morning.
If a break runs long, Turret Siege scales up nicely into a longer session. If you only have ninety seconds, Tilefall is the one — pick it up, score a word, put it down.
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