Games like fishman
Games like fishman include Chinese Parents, Plague Inc: Evolved, Game Dev Tycoon, Mini Motorways, and Town of Salem. We matched them by the tags players give fishman on Steam (Casual, Strategy, Indie, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

Chinese Parents
Shared: Psychological Horror · Casual · Indie

Plague Inc: Evolved
Shared: Strategy · Indie · Casual

Game Dev Tycoon
Shared: Indie · Strategy · Casual

Mini Motorways
Shared: Strategy · Casual · Indie

Town of Salem
Shared: Strategy · Indie · Casual

Zup! S
Shared: Casual · Indie · Strategy

BidKing
Shared: Casual · Strategy · Indie

Plants vs. Zombies GOTY Edition
Shared: Strategy · Casual · Indie

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Indie · Casual

Circle Empires
Shared: Strategy · Casual · Indie

911 Operator
Shared: Strategy · Indie · Casual

Nubby's Number Factory
Shared: Strategy · Psychological Horror · Indie

Dictators:No Peace Countryballs
Shared: Strategy · Casual · Indie

Cookie Clicker
Shared: Casual · Indie · Strategy

Mini Metro
Shared: Strategy · Indie · Casual

Sudoku Universe / 数独宇宙
Shared: Casual · Indie · Strategy

Plebby Quest: The Crusades
Shared: Casual · Strategy · Indie

[Chillas Art] Stigmatized Property
Shared: Indie · Casual · Strategy

Golf With Your Friends
Shared: Casual · Indie · Strategy

Zup!
Shared: Casual · Indie · Psychological Horror

Agrou
Shared: Casual · Strategy · Indie

Overdungeon
Shared: Strategy · Indie · Casual

Hexcells
Shared: Casual · Indie · Strategy

Out of Space
Shared: Casual · Strategy · Indie