Games like Geneforge 2 - Infestation
Games like Geneforge 2 - Infestation include Pathfinder: Kingmaker - Enhanced Plus Edition, Warhammer 40,000: Rogue Trader, Baldur's Gate 3, The Banner Saga, and Ash of Gods: Redemption. We matched them by the tags players give Geneforge 2 - Infestation on Steam (Adventure, RPG, Strategy, Party-Based RPG, and Strategy RPG): closest matches first, and among equally close ones the better-known games.

Pathfinder: Kingmaker - Enhanced Plus Edition
Shared: RPG · Party-Based RPG · CRPG

Warhammer 40,000: Rogue Trader
Shared: RPG · CRPG · Strategy

Baldur's Gate 3
Shared: RPG · Adventure · CRPG

The Banner Saga
Shared: RPG · Strategy RPG · Strategy

Ash of Gods: Redemption
Shared: RPG · Strategy · Strategy RPG

Symphony of War: The Nephilim Saga
Shared: RPG · Adventure · Tactical RPG

Solasta: Crown of the Magister
Shared: RPG · Adventure · Strategy RPG

Divinity: Original Sin - Enhanced Edition
Shared: RPG · Adventure · Party-Based RPG

Pillars of Eternity
Shared: RPG · Adventure · CRPG

Pillars of Eternity II: Deadfire
Shared: RPG · Party-Based RPG · CRPG

For The King II
Shared: Adventure · RPG · Strategy

Wartales
Shared: RPG · Party-Based RPG · Adventure

Legend of Grimrock
Shared: RPG · Adventure · Dungeon Crawler

TROUBLESHOOTER: Abandoned Children
Shared: CRPG · Strategy RPG · Tactical RPG

Prince of Qin
Shared: RPG · Adventure · Party-Based RPG

Tyranny
Shared: RPG · Adventure · CRPG

Torment: Tides of Numenera
Shared: RPG · Adventure · CRPG

Dragon Age: Origins - Ultimate Edition
Shared: RPG · Party-Based RPG · Adventure

Baldur's Gate: Enhanced Edition
Shared: CRPG · RPG · Party-Based RPG

Shadow Gambit: The Cursed Crew
Shared: RPG · Strategy · Adventure

The World of Kungfu: Dragon and Eagle
Shared: RPG · Adventure · Strategy

Encased: A Sci-Fi Post-Apocalyptic RPG
Shared: RPG · CRPG · Strategy

Icewind Dale: Enhanced Edition
Shared: RPG · Adventure · Party-Based RPG

Avernum 4: Greed and Glory
Shared: RPG · Adventure · Strategy