Games like GeoStrategic
Games like GeoStrategic include The Escapists 2, Company of Heroes 3, Terraria, Company of Heroes 2, and Squad. We matched them by the tags players give GeoStrategic on Steam (Strategy, Political Sim, Pixel Graphics, 2D, and Wargame): closest matches first, and among equally close ones the better-known games.

The Escapists 2
Shared: Strategy · Pixel Graphics · 2D

Company of Heroes 3
Shared: Strategy · Wargame · RTS

Terraria
Shared: 2D · Pixel Graphics · Multiplayer

Company of Heroes 2
Shared: Strategy · RTS · Multiplayer

Squad
Shared: PvP · PvE · Multiplayer

Mechabellum
Shared: Strategy · Wargame · PvP

The Escapists
Shared: Strategy · Pixel Graphics · 2D

RIOT: Civil Unrest
Shared: Strategy · Pixel Graphics · Political Sim

Total War: WARHAMMER II
Shared: Strategy · RTS · Multiplayer

ShellShock Live
Shared: Strategy · 2D · Multiplayer

Rusted Warfare - RTS
Shared: Strategy · RTS · 2D

Broforce
Shared: Pixel Graphics · 2D · Action

Tooth and Tail
Shared: Strategy · Pixel Graphics · RTS

Wargame: Red Dragon
Shared: Strategy · Wargame · RTS

PUBG: BATTLEGROUNDS
Shared: PvP · Multiplayer · Strategy

Bloons TD 6
Shared: Strategy · Multiplayer · Online Co-Op

Broken Arrow
Shared: Strategy · Wargame · RTS

Warhammer 40,000: Dawn of War - Definitive Edition
Shared: Strategy · RTS · Multiplayer

Police Stories
Shared: Strategy · Action · Pixel Graphics

Door Kickers
Shared: Strategy · Top-Down · 2D

Men of War: Assault Squad 2
Shared: Strategy · RTS · Action

Total War: THREE KINGDOMS
Shared: Strategy · RTS · Multiplayer

DEFCON
Shared: Strategy · PvP · Multiplayer

Steel Division 2
Shared: Strategy · RTS · Wargame