Games like Fungus Reaper
Games like Fungus Reaper include Wall World, Loop Hero, Necrosmith, Darkest Dungeon® II, and Cluckmech Oasis. We matched them by the tags players give Fungus Reaper on Steam (Strategy, Roguelike, Tower Defense, Roguelite, and Action RTS): closest matches first, and among equally close ones the better-known games.

Wall World
Shared: Roguelite · Tower Defense · Roguelike

Loop Hero
Shared: Roguelike · Roguelite · Pixel Graphics

Necrosmith
Shared: Tower Defense · Strategy · Roguelite

Darkest Dungeon® II
Shared: Roguelite · Turn-Based Tactics · Roguelike

Cluckmech Oasis
Shared: Strategy · Roguelike · Tower Defense

Balatro
Shared: Roguelike · Strategy · Roguelite

Nordhold
Shared: Strategy · Tower Defense · Roguelite

The King is Watching
Shared: Roguelike · Tower Defense · Strategy

Into the Breach
Shared: Strategy · Roguelike · Turn-Based Tactics

Slots & Daggers
Shared: Strategy · Roguelike · Roguelite

Dead Cells
Shared: Roguelike · Roguelite · 2D

Dungeon of the ENDLESS™
Shared: Strategy · Roguelike · Tower Defense

Peglin
Shared: Roguelike · Roguelite · Strategy

Vampire Survivors
Shared: Roguelite · Roguelike · 2D

Sir, We Have an Orc Problem
Shared: Tower Defense · Roguelite · Strategy

Stoneshard
Shared: Roguelike · Strategy · Pixel Graphics

Brutal Orchestra
Shared: Strategy · Roguelike · Roguelite

The Last Spell
Shared: Strategy · Turn-Based Tactics · 2D

Rogue Tower
Shared: Strategy · Tower Defense · Roguelike

Slay the Spire 2
Shared: Roguelike · Strategy · Roguelite

Tower Dominion
Shared: Strategy · Tower Defense · Roguelike

FTL: Faster Than Light
Shared: Roguelike · Strategy · Roguelite

Emberward
Shared: Strategy · Tower Defense · Roguelite

Wall World 2
Shared: Roguelite · Tower Defense · Roguelike