Games like Poisonous Abyss
Games like Poisonous Abyss include XCOM 2, The Last Spell, Darkest Dungeon®, Stoneshard, and 觅长生. We matched them by the tags players give Poisonous Abyss on Steam (Strategy, RPG, Racing, God Game, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

XCOM 2
Shared: Strategy · RPG · Turn-Based Combat

The Last Spell
Shared: Strategy · RPG · Singleplayer

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

Stoneshard
Shared: RPG · Strategy · 2D

觅长生
Shared: RPG · Strategy · Turn-Based Combat

Baldur's Gate 3
Shared: RPG · Turn-Based Combat · Strategy

9 Kings
Shared: Strategy · RPG · Turn-Based Combat

Quasimorph
Shared: RPG · Strategy · Turn-Based Combat

The World of Kungfu: Dragon and Eagle
Shared: RPG · Strategy · Turn-Based Combat

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Singleplayer

Battle Brothers
Shared: Strategy · RPG · Turn-Based Combat

Swords and Sandals Classic Collection
Shared: Strategy · RPG · Turn-Based Combat

Mutant Year Zero: Road to Eden
Shared: Strategy · RPG · Turn-Based Combat

Sword and Fairy
Shared: RPG · Turn-Based Combat · 2D

Swords and Souls: Neverseen
Shared: RPG · Turn-Based Combat · Singleplayer

Jagged Alliance 3
Shared: Strategy · RPG · Turn-Based Combat

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

Super Fantasy Kingdom
Shared: Strategy · RPG · Turn-Based Combat

Doom & Destiny
Shared: RPG · Strategy · Turn-Based Combat

Pit People®
Shared: Strategy · Turn-Based Combat · 2D

Mount & Blade: Warband
Shared: RPG · Strategy · Singleplayer

MENACE
Shared: Strategy · RPG · Turn-Based Combat

Wartales
Shared: RPG · Strategy · Turn-Based Combat

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Strategy · Singleplayer