Single-player games like Fungus Reaper
Below are 9 single-player Steam games similar to Fungus Reaper, 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 Fungus Reaper page.
Ranked picks
- 1

Grove Keeper
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
In this Dark-Fantasy, RTS game, you play the role of a Forest Deity protecting your Grove against an onslaught of loggers, warriors and poachers. Use your powers to grow trees, summon guardians, set traps, and employ magic to defend, and eventually conquer your human oppressors.
- 2

Tower Factory
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
Tower Factory is a tower defense and automation game with roguelite elements. Optimize resource production using conveyor systems while defending against monster waves. Can you find and destroy the enemy tower before it's too late?
- 3

Touhou Monster TD ~ 幻想乡妖怪塔防
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
Easy to learn but hard to master, Touhou Monster TD is a unique Tower defense Game. Control your character, level up and unlock tower skills and character talents, use your wisdom to defeat incoming enemies. Travel the Gensokyo, find out why the “Incident” happened this time.
- 4

Necrosmith
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
A necromancer simulator. Assemble the dead using different body parts while upgrading your tower, combine the abilities of the different fantastic races to fight your way through the hordes of enemies and overrun the ’chosen ones’. To tell the truth, the dead are pretty, uhm, dumb.
- 5

Heretic's Fork
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
Dear candidate, we are pleased to invite you to take up the position of manager of Hell. You will punish sinners by using our deck-building computer system to construct hellish towers capable of keeping the endless hordes of the underworld in check. Best of luck!
- 6

Emberward
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
Build twisting mazes with tetromino blocks and deploy unique towers in this strategic roguelite tower defense adventure!
- 7

Has-Been Heroes
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
Has-Been Heroes is a challenging, lane-based roguelike game of strategy and action, featuring a band of heroes on a quest to escort the King's twin princesses to school!
- 8

Othercide
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
As Humanity’s last hope, lead your army to combat in an intricate dance of spectacular actions and counters, using an original Dynamic Timeline System, and face fearsome bosses in epic battles.
- 9

Cards with Personalities
Single-player alternative to Fungus Reaper — playable solo, no multiplayer required. Shares Strategy with Fungus Reaper.
Cards with Personalities is a single-player deck-building game full of charm!