Single-player games like Prime Monster System
Below are 8 single-player Steam games similar to Prime Monster System, 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 Prime Monster System page.
Ranked picks
- 1

Moonlight Chess
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy and Indie with Prime Monster System.
Moonlight Chess is a turn-based tactical auto-battler where you must assemble your own army, defeat waves of enemies, and vanquish the evil ravaging the kingdom!
- 2

Divine Tactics
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy with Prime Monster System.
Lead your team of divine allies to victory in this roguelike autobattler. Position your units, unleash their unique powers, and outsmart rivals in this asynchronous multiplayer competition.
- 3

Hundred Battle
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy and Indie with Prime Monster System.
Grow like a roguelike, draft your party like an auto-battler, command like an RTS — a semi-auto-battler roguelike of a hundred battles.
- 4

Flowers and Deities
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy and Indie with Prime Monster System.
Flowers and Deities is a strategy deckbuilder roguelite where you command a blood-soaked lizardkin army through escalating arena battles, spending every drop of spilled blood to cast spells, summon creatures, and survive long enough to claim the favor of the Gods
- 5

Astroguelike
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy and Indie with Prime Monster System.
Destroy humanity in this roles-reversed Asteroids game! This is a sci-fi strategy roguelite auto battler based on games like Super Auto Pets and Crops, where you launch asteroids at an human spaceship. Develop different synergies and builds with dozens of types of asteroids with unique abilities.
- 6

Legion Draft
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy with Prime Monster System.
This is an async PvP card autobattler where each card represents a troop group that keeps growing. Draft cards, recruit soldiers, and build a legion that surpasses every opponent. Explore fantasy races with different synergies, and become a master strategist!
- 7

AutoChess of Gensokyo
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy with Prime Monster System.
"AutoChess of Gensokyo" is a Touhou Project multi-player AutoChess-Like game. Draw character from the deck, build your combination, upgrade the character, and fight with other players. Keep optimizing your combination to win the game.
- 8

Warring Triad
Single-player alternative to Prime Monster System — playable solo, no multiplayer required. Shares Strategy and Indie with Prime Monster System.
Dive into Warring Triad, where the thrilling mechanics of your favorite old-school card games meet an immersive roguelike adventure. After a mysterious spaceship crash-lands on a vibrant new planet, a group of children transforms into a community united by the art of card battles.