OverLit app icon

On the App Store

Keep the grid alive.

A level-based arcade game about reading pressure fast. Cells ignite, heat toward danger, change behaviour, and burn out if you leave them. Colour is the only instruction you get.

  • No sign-in
  • Plays offline
  • Short sessions
  • Free with ads
Demo Survive 0:25 Score 0 Time 0.0
5x5
  • Fresh
  • Warning
  • Critical

Survive 25 seconds.

Cells ignite, heat, then burn out. Tap them before they do — hotter cells are worth more, and one burnout ends the run.

A stripped-down taste of the loop, not a slice of the real thing. The app has a level campaign, arcade families, stars, themes, and boards that change the rules on you.

Reading the board

Every cell tells you how long you have.

There is no tutorial text mid-run. Colour is the whole interface, so it has to be legible at a glance, at speed, with a thumb in the way.

  1. Idle
  2. Fresh
  3. Warning
  4. Critical
  5. Burnout
  1. Idle

    A cell sits dark.

    Nothing to do. Most of the board looks like this at the start of a level, and almost none of it does by the end.

  2. Fresh

    It ignites. Now it is yours.

    This is the cheap window. Clear it here and you barely feel the cost — but there is always another one lighting somewhere else.

  3. Warning

    It starts to heat.

    The board is telling you which decision matters next, in the only language it has at speed: colour.

  4. Critical

    Critical. The one you will misread.

    The engine caps how many cells can be live at once, and later levels lift the cap. Reading which of them to save is the whole game.

  5. Burnout

    Let it go and the board answers.

    Red to black, fast and loud, because you should see the failure happen rather than find a cell quietly gone. What that costs is the level's decision — the end of the run, or a hole in a no-miss streak.

The campaign

Levels are where the rules keep changing.

Early ones teach the rhythm. Later ones take it away. Each twist arrives on its own, gets a level to itself, and then starts showing up combined with the last four.

Difficulty Stacks, never resets
  1. 01 Score goals Reach a number before the level lets go.
  2. 02 Survival goals Just stay alive. The board decides how long that takes.
  3. 03 Deadlines A clock that does not care how good the last run was.
  4. 04 No-miss pressure One slip ends it. Levels that teach restraint.
  5. 05 Line and diagonal waves Whole rows, columns and diagonals arrive together.
  6. 06 Shape Shifter Weighted procedural formations that have to be read, not reacted to.
  7. 07 Ember Snake A short-fuse crawler that works a path through the grid while you play.
  8. 08 Mixed pressure Random cells combined with a readable pattern, disagreeing with each other.
  9. 09 Star targets Three tiers per level, so clearing is never the ceiling.
  10. 10 Boss milestones Set pieces that combine everything the run has taught you.

Arcade families

Many ways for the board to come at you.

Unlockable free-play spaces that reuse the same grid language differently, with Survival and Time Attack rulesets where they fit — and the campaign and Daily Challenge alongside them.

  • Classic

    Every pressure style in one endless run, so the board never settles into a single tempo.

    • Survival
    • Time Attack
  • Random

    Scatter. Cells arrive wherever they like, and the only structure is the one you impose.

    • Survival
    • Time Attack
  • Pattern

    Lines and shapes light as a unit. Clearing turns into route-planning rather than pure reaction.

    • Survival
    • Time Attack
  • Snake

    A crawler works its way across the grid. You are chasing a moving problem instead of a scattered one.

    • Survival
    • Time Attack
  • Random scatter
  • Static patterns
  • Full lines
  • Short lines
  • Diagonals
  • Shape Shifter
  • Ember Snake
  • Mirror pairs
  • Echo trails
  • Mixed pressure
  • Pressure clock
  • Deadlines
  • No-miss runs
  • Daily Challenge
  • and more

On the phone

Built to be readable with one thumb.

  • OverLit Classic survival on a six by six grid, one cell critical red and two amber.
    Mid-run pressure Classic on 6 × 6, seven seconds in: one cell already critical, two heating.
  • OverLit level select screen showing the Novice levels and a locked Intermediate tier.
    Stars, not just clears Three tiers per level, and the next tier stays shut until the stars arrive.
  • OverLit mode hub listing Daily Challenge, Levels, Classic, and the locked Random, Pattern and Snake modes.
    Modes The hub. Some of it is open on install, and the rest is something you earn.

Built for the spare minute

Watch the board. Trust your timing.

Free to play with ads, and there is no sign-in — no name, email address or password, ever. Levels, stars, unlocks and settings live on your device. One optional purchase removes the ads; the optional online leaderboard is the only place a score leaves the phone, under a random nickname you pick from a list.