Games like Sigma Protocol
Games like Sigma Protocol include Creeper World 4, Total War: WARHAMMER III, Broken Arrow, Bad North: Jotunn Edition, and Total War: WARHAMMER II. We matched them by the tags players give Sigma Protocol on Steam (Strategy, RTS, Tower Defense, Real Time Tactics, and Wargame): closest matches first, and among equally close ones the better-known games.
Creeper World 4
Shared: Tower Defense · Real Time Tactics · RTS
Total War: WARHAMMER III
Shared: Strategy · RTS · Real Time Tactics
Broken Arrow
Shared: Strategy · RTS · Wargame
Bad North: Jotunn Edition
Shared: Wargame · Tower Defense · Real Time Tactics
Total War: WARHAMMER II
Shared: Strategy · RTS · Fantasy
Wargame: Red Dragon
Shared: Strategy · RTS · Wargame
Kingdom Two Crowns
Shared: Tower Defense · Minimalist · Strategy
Dota 2
Shared: Strategy · RTS · Team-Based
Bloons TD 6
Shared: Strategy · Tower Defense · Co-op
Element TD 2 - Tower Defense
Shared: Tower Defense · Real Time Tactics · Strategy
WARNO
Shared: RTS · Strategy · Wargame
Company of Heroes 3
Shared: Strategy · RTS · Wargame
Warhammer 40,000: Dawn of War II - Anniversary Edition (Classic)
Shared: Strategy · RTS · Tactical
Planetary Annihilation: TITANS
Shared: Strategy · RTS · Real Time Tactics
Mindustry
Shared: Tower Defense · RTS · Strategy
Age of Darkness: Final Stand
Shared: Tower Defense · RTS · Strategy
Company of Heroes 2
Shared: Strategy · RTS · Tactical
DG2: Defense Grid 2
Shared: Strategy · Tower Defense · RTS
Wargame: Airland Battle
Shared: Strategy · RTS · Wargame
Thronefall
Shared: Strategy · Tower Defense · Minimalist
Total War: THREE KINGDOMS
Shared: Strategy · RTS · Real Time Tactics
Men of War: Assault Squad 2
Shared: Strategy · RTS · Real Time Tactics
Dungeon Defenders
Shared: Tower Defense · Strategy · Tactical
Stronghold Crusader: Definitive Edition
Shared: Strategy · Real Time Tactics · Tower Defense