Games like Fragile Peace
Games like Fragile Peace include The Escapists, The Escapists 2, Oxygen Not Included, Tower Wizard, and Stoneshard. We matched them by the tags players give Fragile Peace on Steam (Strategy, 2D, Pixel Graphics, Resource Management, and Singleplayer): closest matches first, and among equally close ones the better-known games.

The Escapists
Shared: Strategy · Pixel Graphics · 2D

The Escapists 2
Shared: Strategy · Pixel Graphics · 2D

Oxygen Not Included
Shared: Resource Management · 2D · Singleplayer

Tower Wizard
Shared: Strategy · Resource Management · 2D

Stoneshard
Shared: Strategy · Pixel Graphics · 2D

Balatro
Shared: Strategy · Singleplayer · Pixel Graphics

Factorio
Shared: Resource Management · Strategy · 2D

Dungeon Warfare
Shared: Strategy · Pixel Graphics · 2D

Sheltered
Shared: Strategy · Pixel Graphics · Resource Management

Plants vs. Zombies GOTY Edition
Shared: Strategy · Singleplayer · 2D

Bloons TD 6
Shared: Strategy · Singleplayer · 2D

Gunpoint
Shared: 2D · Pixel Graphics · Strategy

Vampire Survivors
Shared: Pixel Graphics · 2D · Singleplayer

Party Hard
Shared: Strategy · Pixel Graphics · Singleplayer

Turmoil
Shared: Strategy · Resource Management · Singleplayer

shapez
Shared: Resource Management · Strategy · Singleplayer

Teamfight Manager
Shared: Pixel Graphics · Strategy · 2D

Age of Empires II (Retired)
Shared: Strategy · Resource Management · Singleplayer

Kingdom Rush Frontiers - Tower Defense
Shared: Strategy · 2D · Singleplayer

Kingdom Rush - Tower Defense
Shared: Strategy · 2D · Singleplayer

Frostpunk
Shared: Strategy · Resource Management · Singleplayer

Kingdom Rush 5: Alliance TD
Shared: Strategy · 2D · Singleplayer

Kingdom Rush Origins - Tower Defense
Shared: Strategy · 2D · Singleplayer

The Last Spell
Shared: Strategy · Singleplayer · 2D