Idle Monkey Theorem

Idle Monkey Theorem is an idle game based on the Infinite Monkey Theorem. You hire typing monkeys, upgrade their skills and collect the words they generate to recreate Shakespeare’s plays, sonnets and poems one word at a time. Each monkey generates words independently, so adding monkeys increases word production. Their work also earns Inspiration Points to spend on upgrades.

Build your typing team

You start with one monkey and can grow a full typing army. Monkeys tap away at their typewriters in sprite animations, randomly producing words. The game says progress continues even when the words you need are unlikely to appear.

Game modes

• Classic: Play rounds with timers, upgrade trees and guaranteed word progression.
• Hardcore: Rely on pure random word generation, with no pity timer or safety nets.
• You Type: Dismiss the monkeys and type the target words yourself.
• Idler: Play without round timers, with words harvested automatically.
• Roguelite: Choose one of three random upgrade cards at the end of each round to shape your build.
• Zen: Play without timers, with ambient sounds.

Upgrade your operation

Spend Inspiration Points on upgrades that affect word production, collection and round timing:

• Buy Monkey: Add typing monkeys to increase word production.
• Typewriter: Speed up word generation and display.
• Focus Training: Make monkeys type letters faster.
• Quill: Increase your collection radius.
• Library: Increase the value of each collected word.
• Lucky Ink: Improve the chance of generating the exact word you need.
• Pen Rhythm: Shorten the quill’s pulse interval.
• Play Duration: Add time to round duration.
• Time Frequency: Make time collectibles spawn more often.
• Time Value: Increase the extra seconds granted by each time collectible.