Brain · 9 games
Free brain games and IQ-style puzzles
Pattern tests, number targets, colour-word tricks and logic towers — short workouts for memory, focus and reasoning that run right in your browser.
9 games · free · nothing to install · no account
Disc TowerMove the whole stack across, one disc at a time. Never big on small.
Colour ClashThe word says one colour, the ink says another. Answer the right one.
Mind MatrixNine squares, one missing. Work out the rule and finish it.
Target NumberSix numbers, one target. Add, take, times or share your way there.
Logic GridTick and cross until one answer is left.
Juice StandOne trading day a day: price it, stock it, sell it.
New
Ten Floors DownOne hero, one torch, ten floors. Nothing moves until you do.
New
Attic LampA gentle text adventure: one sleepy house, a new chapter every day.
New
Pin SharpThree thirty-second drills for a quick, steady hand.
Nothing here matches that.
What's in the brain shelf
Brain games stretch one mental skill at a time: spotting the rule in a pattern, holding a sequence in your head, ignoring a word that tries to trick you. They are for fun and practice, not a real IQ test, and your best scores stay on your own device.
Start with Disc Tower, Colour Clash, Mind Matrix, Target Number, Logic Grid, Juice Stand.
Do I need to download or install anything?
No. Every game on RetroWorld is drawn and sounded in code inside the page, so opening the game page is the whole install. There is no plugin, no app store, and nothing to update. If you like, add RetroWorld to your home screen: it opens like an app, and games you have already played keep working without a connection.
Do these work on a phone?
Yes. Every game has touch controls — a swipe, a tap, a drag or an on-screen pad, whichever suits it — and the screen fills the phone when you press Play. Games that need a wide view rotate; the rest stay upright.
Do I need an account, and are my scores saved?
There is no account and no sign-up. Your best score for each game is stored by your own browser on your own device, which also means it stays behind if you switch phone or clear your browser data.
Are these copies of games I already know?
No. Every game here was written for RetroWorld with its own name, its own art and its own synthesised sound. Some share a genre with games you have played — that is the point of a genre — but none of them use anyone else's characters, sprites, music or branding.




