Games like Subsiege
Games like Subsiege include Dota 2, Counter-Strike 2, SMITE®, PUBG: BATTLEGROUNDS, and Tom Clancy's Rainbow Six Siege. We matched them by the tags players give Subsiege on Steam (RTS, MOBA, Underwater, Multiplayer, and Strategy): closest matches first, and among equally close ones the better-known games.

Dota 2
Shared: MOBA · Multiplayer · Strategy

Counter-Strike 2
Shared: Multiplayer · Team-Based · Competitive

SMITE®
Shared: MOBA · Multiplayer · Strategy

PUBG: BATTLEGROUNDS
Shared: Multiplayer · Online Co-Op · Strategy

Tom Clancy's Rainbow Six Siege
Shared: Multiplayer · Online Co-Op · Team-Based

Company of Heroes 2
Shared: RTS · Strategy · Multiplayer

SMITE 2
Shared: MOBA · Strategy · Multiplayer

Total War: WARHAMMER III
Shared: RTS · Strategy · Real Time Tactics

Age of Empires II (Retired)
Shared: RTS · Strategy · Multiplayer

Warhammer 40,000: Dawn of War III
Shared: RTS · Strategy · Multiplayer

Planetary Annihilation: TITANS
Shared: RTS · Strategy · Multiplayer

Paladins®
Shared: Multiplayer · Team-Based · MOBA

Total War: ROME II - Emperor Edition
Shared: Strategy · RTS · Multiplayer

Natural Selection 2
Shared: Multiplayer · Strategy · RTS

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

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

Command & Conquer™ 4 Tiberian Twilight
Shared: RTS · Strategy · Multiplayer

Rocket League®
Shared: Multiplayer · Team-Based · Competitive

Warhammer 40,000: Dawn of War II - Anniversary Edition (Classic)
Shared: RTS · Strategy · Multiplayer

Men of War II
Shared: RTS · Multiplayer · Strategy

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

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

Marvel Rivals
Shared: Multiplayer · Team-Based · Strategy

Call to Arms - Gates of Hell: Ostfront
Shared: RTS · Strategy · Real Time Tactics