IdleOn - The Incremental MMO
- 10players
- Under 30 min
- PC
A free idle MMO where a roster of up to eleven characters keeps fighting, gathering and crafting while you are away.
Who can play
- No split-screen on any platform.
- Online for up to 10 players on PC.
- Free to play.
How it plays
Most of the game is your own account ticking over while you are away, so playing together is light: friends add each other, send account bonuses and share a guild.
The real co-op is party dungeons, short runs where a party of up to ten fights side by side.
It is free and progress carries over to the phone versions.
Is it good
77%
Mostly positive on Steam
Steam Deck Playable
Every way to play together
No split-screen. Online for up to 10 on PC. Free to play. 77% positive of 30,000 Steam reviews.
- 10
A party of up to ten runs party dungeons together; the main idle progress is each player's own.
Quick facts
- Developer
- Lavaflame2
- Platforms
- PC
- Released
- 6 Nov 2025 on PC
- Languages
- Text in 6 languages, voices in 6
- Also needs
- IdleOn Account
In these lists
Answers
- Does IdleOn - The Incremental MMO have couch co-op?
- No. IdleOn - The Incremental MMO has no same-screen multiplayer; play it together online instead.
- How many players can play IdleOn - The Incremental MMO together?
- Online co-op for up to 10 on PC.
- Do you need two copies of IdleOn - The Incremental MMO?
- No. It's free to play.
- One of 1,371 co-op games where one copy is enough
- Does IdleOn - The Incremental MMO work on Steam Deck?
- Yes, with some extra steps: Steam rates it Playable for Steam Deck.
- Is IdleOn - The Incremental MMO free?
- Yes, it's free to play.
