Fish RNGdle – Free Online Puzzle Game

A free ocean-themed daily game. You roll one random integer between 0 and 1,000,000 each UTC day and work out which of 233 mathematical badges it earns you. Guests can play; a leaderboard account is optional. No paid rerolls and no cash prizes. Opens in its own tab.

Which device? We do not hold a control list for Fish RNGdle yet, so we cannot tell you what it expects. Open it and see — and if it does not respond to taps, try it on a computer. The full-screen link above gives it the whole screen either way.

1. You get one roll per UTC day - a single random number between 0 and 1,000,000.
2. Work out which mathematical properties your number has to collect badges.
3. Play as a guest, or make an optional account if you want a leaderboard place.

Controls — general guide

• Mouse or touch: click, or tap if the game accepts it. Some games here are built for a touch screen and some want a keyboard — the note above says which this one is.
• Keyboard (if the game uses it): arrow keys or WASD to move, and the space bar to jump or act.
• Full screen: use the “Play full screen” button above for a bigger view.

• Read the steps above before your first run — Fish RNGdle documents 3 of them, and most early losses are just not knowing the rule.
• Use Play full screen if anything feels cramped — it hands the game the whole window, which matters most on a laptop.
• Nothing saves to SlowDen. Closing the tab ends the run, so finish a level before you leave.