Games like Maid Mech
Games like Maid Mech include Balatro, 9 Kings, Stoneshard, Vampire Crawlers: The Turbo Wildcard from Vampire Survivors, and Mount & Blade II: Bannerlord. We matched them by the tags players give Maid Mech on Steam (Strategy, Auto Battler, Pixel Graphics, War, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Balatro
Shared: Strategy · Pixel Graphics · Singleplayer

9 Kings
Shared: Strategy · Auto Battler · Roguelike

Stoneshard
Shared: Strategy · Pixel Graphics · Roguelike

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Strategy · Pixel Graphics · Card Battler

Mount & Blade II: Bannerlord
Shared: Strategy · War · Singleplayer

FTL: Faster Than Light
Shared: Strategy · Sci-fi · Roguelike

Dungeon of the ENDLESS™
Shared: Strategy · Pixel Graphics · Sci-fi

Planetary Annihilation: TITANS
Shared: Strategy · Real Time Tactics · Sci-fi

The Escapists
Shared: Strategy · Pixel Graphics · Singleplayer

Slay the Spire
Shared: Strategy · Card Battler · Roguelike

Mechabellum
Shared: Auto Battler · Strategy · Robots

Despot's Game: Dystopian Battle Simulator
Shared: Auto Battler · Pixel Graphics · Strategy

Into the Breach
Shared: Strategy · Pixel Graphics · Sci-fi

The Bazaar
Shared: Strategy · Auto Battler · Card Battler

Legend Creatures(传奇生物)
Shared: Auto Battler · Strategy · Pixel Graphics

Vampire Survivors
Shared: Pixel Graphics · Singleplayer · 2D

Super Fantasy Kingdom
Shared: Strategy · Auto Battler · Roguelike

Luck be a Landlord
Shared: Strategy · Pixel Graphics · Auto Battler

XCOM 2
Shared: Strategy · Sci-fi · War

Dome Keeper
Shared: Singleplayer · Sci-fi · Pixel Graphics

Slay the Spire 2
Shared: Strategy · Roguelike · Deckbuilding

Endgame of Devil
Shared: Strategy · Pixel Graphics · Singleplayer

Warpips
Shared: Strategy · Auto Battler · War

Sands of Salzaar
Shared: Strategy · War · Singleplayer