Games like Fountain
Games like Fountain include Into the Breach, Slay the Spire 2, Mewgenics, The Last Spell, and Darkest Dungeon® II. We matched them by the tags players give Fountain on Steam (Strategy, Indie, Roguelike, Turn-Based Strategy, and Fantasy): closest matches first, and among equally close ones the better-known games.

Into the Breach
Shared: Strategy · Indie · Turn-Based Strategy

Slay the Spire 2
Shared: Roguelike · Strategy · Indie

Mewgenics
Shared: Roguelite · Turn-Based Strategy · Turn-Based Tactics

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

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

Balatro
Shared: Roguelike · Strategy · Indie

Legend Creatures(传奇生物)
Shared: Indie · Roguelike · Strategy

Othercide
Shared: Strategy · Indie · Turn-Based Combat

Warriors of the Nile
Shared: Strategy · Roguelike · Turn-Based Combat

Fell Seal: Arbiter's Mark
Shared: Strategy · Indie · Turn-Based Strategy

Monster Train
Shared: Roguelite · Roguelike · Turn-Based Strategy

Slay the Spire
Shared: Roguelike · Strategy · Indie

Super Fantasy Kingdom
Shared: Strategy · Roguelike · Fantasy

Crown Trick
Shared: Roguelike · Strategy · Turn-Based Combat

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

Iratus: Lord of the Dead
Shared: Strategy · Indie · Roguelike

Legends of Kingdom Rush
Shared: Turn-Based Strategy · Turn-Based Tactics · Strategy

RACCOIN: Coin Pusher Roguelike
Shared: Strategy · Roguelike · Turn-Based Strategy

Darkest Dungeon®
Shared: Roguelike · Turn-Based Combat · Strategy

LONESTAR
Shared: Strategy · Roguelike · Turn-Based Strategy

Roguebook
Shared: Indie · Strategy · Roguelike

9 Kings
Shared: Strategy · Roguelike · Roguelite

Banner of the Maid
Shared: Strategy · Turn-Based Strategy · Indie

Die in the Dungeon
Shared: Strategy · Roguelike · Indie