Single-player games like Mission IDLE
Below are 13 single-player Steam games similar to Mission IDLE, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Mission IDLE page.
Ranked picks
- 1

RPG IDLE
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
RPG IDLE is an IDLE game with inspiration from most RPGS... In this game you will be controlling Clovis, a brave Knight in search of training.
- 2

Horus IDLE
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
Horus IDLE is an IDLE rpg where you see similar scenarios but with a differnt approach. Horus IDLE has only one mission type and one Enemy Type. Horus IDLE was an attempt to pick what I liked from certain games. I also tried to shorten the game a little bit.
- 3

Gladiators IDLE
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
Gladiators IDLE is an IDLE game where you will train your gladiators and upgrade your gladiators equipment. The stronger you get in this game will allow you to move further in the Arena!
- 4

AUTO_BATTLER_RPG
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
This is a game about automatical upgrades and unlocking of resources The game plays by itself while all you do is upgrade your hero... and attempt to move even further in the dungeon and by doing that growing in strength.
- 5

Empire IDLE
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
In this game you will be harvesting resources, upgrading your buildings, waging war, and prestiging, Most mechanics in-game are automated. You won`t need to be active while playing it.
- 6

Feudal Fantasy Incremental
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
Feudal Fantasy is a short active incremental game in which you rebuild a town once lost to tragedy as its lord, by managing upgrades, new buildings and recruiting the wisdom of fantasy races.
- 7

Norega
Single-player alternative to Mission IDLE — playable solo, no multiplayer required.
Norega is a game where you play as Kurt, a Knight in training, and your task is to feed up Kurt's stats so that he can improve in Strength and be able to defeat the tougher monsters found on the outskirts of Norega.
- 8

Knights and Castles
Single-player alternative to Mission IDLE — playable solo, no multiplayer required.
(KnC) Knights and Castles is an IDLE - GAME, wich is a game where most of the mechanics and battles are automated so you can enjoy making progress while drinking a coffe without having to work so hard to play =)
- 9

Knight`s Pride
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
This game isn`t rich storywise! It plays almost as much as Knights and Dungeons another game of mines.... This is also not an Idle game and battles aren`t automated. This game is about actively doing repeatable tasks to unlock new content such as new gear and new enemies.
- 10

Dungeons and Raids
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
Dungeons and Raids is a gacha game where you will collect heroes and make them fight in the dungeons...
- 11

Greed and Grind
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
Hello guys I am bringing you this time around a small cozy little game about greed and grinding!! If you played my previous games you should know what to expect! If you didnt... This is a small Idle game where the character battles autommatically while everything you do is drink a coffee.
- 12

Loop Kingdom
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
Loop Kingdom is a game focused on selling veteran fighters and hiring new ones.... while improving your market and keep searching for that legendary fighter that will take you to floor 200 or 400....
- 13

Be King
Single-player alternative to Mission IDLE — playable solo, no multiplayer required. Shares Casual with Mission IDLE.
Be king is a decision taking game, and you can loose if you take the wrong decisions! Taking and making the right decisions is what you need to ensure you keep increasing your empire in size, and in power!