Games like Geargrave Outlands
Games like Geargrave Outlands include XCOM 2, The Last Spell, STAR WARS Zero Company™, Warhammer 40,000: Mechanicus, and Mutant Year Zero: Road to Eden. We matched them by the tags players give Geargrave Outlands on Steam (Early Access, Post-apocalyptic, Strategy, Vehicular Combat, and Turn-Based Combat): closest matches first, and among equally close ones the better-known games.

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

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

STAR WARS Zero Company™
Shared: Strategy · Turn-Based Combat · Turn-Based Strategy

Warhammer 40,000: Mechanicus
Shared: Strategy · Turn-Based Combat · Turn-Based Tactics

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

The Banner Saga 3
Shared: Strategy · Story Rich · Turn-Based Combat

Library Of Ruina
Shared: Strategy · Story Rich · Turn-Based Combat

XCOM®: Chimera Squad
Shared: Strategy · Turn-Based Strategy · Turn-Based Combat

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

Mewgenics
Shared: Turn-Based Combat · Turn-Based Tactics · 2D

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

Encased: A Sci-Fi Post-Apocalyptic RPG
Shared: Post-apocalyptic · Turn-Based Combat · Strategy

Warhammer 40,000: Chaos Gate - Daemonhunters
Shared: Strategy · Turn-Based Strategy · Turn-Based Combat

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

The Banner Saga
Shared: Strategy · 2D · Turn-Based Strategy

The World of Kungfu: Dragon and Eagle
Shared: Strategy · Turn-Based Combat · 2D

Clair Obscur: Expedition 33
Shared: Turn-Based Combat · Story Rich · Singleplayer

Fallout: New Vegas
Shared: Post-apocalyptic · Story Rich · Singleplayer

Warhammer 40,000: Rogue Trader
Shared: Strategy · Turn-Based Combat · Turn-Based Strategy

Dead State: Reanimated
Shared: Strategy · Post-apocalyptic · Turn-Based Combat

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

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

MENACE
Shared: Strategy · Turn-Based Combat · Turn-Based Strategy

RimWorld
Shared: Strategy · Singleplayer · Story Rich