Games like Ambusher
Games like Ambusher include Age of Darkness: Final Stand, Thronefall, Age of Mythology: Retold, Total War: WARHAMMER II, and Aliens: Dark Descent. We matched them by the tags players give Ambusher on Steam (Strategy, Card Game, RTS, Action RTS, and 3D): closest matches first, and among equally close ones the better-known games.

Age of Darkness: Final Stand
Shared: Strategy · RTS · Action RTS

Thronefall
Shared: Strategy · Action RTS · 3D

Age of Mythology: Retold
Shared: Strategy · RTS · 3D

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

Aliens: Dark Descent
Shared: Strategy · RTS · Action

Creeper World 4
Shared: RTS · Strategy · Building

Warhammer Age of Sigmar: Realms of Ruin
Shared: Strategy · RTS · Action RTS

Broken Arrow
Shared: Strategy · RTS · Action RTS

Total War: WARHAMMER III
Shared: Strategy · RTS · Fantasy

Company of Heroes 3
Shared: Strategy · RTS · Action RTS

Tempest Rising
Shared: Strategy · RTS · 3D

Bee Island
Shared: Strategy · Action RTS · 3D

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

Kingdom Rush - Tower Defense
Shared: Strategy · Fantasy · Tactical

Balatro
Shared: Card Game · Strategy · Singleplayer

Artisan TD
Shared: Strategy · Building · Stylized

Door Kickers
Shared: Strategy · Top-Down · Tactical

Infested Planet
Shared: Strategy · RTS · Action

Bloons TD 6
Shared: Strategy · 3D · Tower Defense

GemCraft - Chasing Shadows
Shared: Strategy · Top-Down · Action

DG2: Defense Grid 2
Shared: Strategy · RTS · Action

Kingdom Rush Origins - Tower Defense
Shared: Strategy · Building · Tower Defense

Cossacks 3
Shared: Strategy · RTS · Action RTS

Door Kickers 2: Task Force North
Shared: Strategy · Top-Down · Tactical