Games like Fight For America
Games like Fight For America include Bloons TD 6, Aliens: Dark Descent, Kingdom Rush - Tower Defense, GemCraft - Chasing Shadows, and Men of War: Assault Squad 2. We matched them by the tags players give Fight For America on Steam (Action, Strategy, Tower Defense, Top-Down Shooter, and 3D): closest matches first, and among equally close ones the better-known games.

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

Aliens: Dark Descent
Shared: Strategy · Action · Tactical

Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · Action

GemCraft - Chasing Shadows
Shared: Strategy · Tower Defense · Action

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

Door Kickers
Shared: Strategy · Action · Top-Down

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

Orcs Must Die! 3
Shared: Tower Defense · Strategy · Action

Thronefall
Shared: Strategy · Tower Defense · Action

RUNNING WITH RIFLES
Shared: Action · Top-Down Shooter · Tactical

Infested Planet
Shared: Strategy · Action · Tower Defense

Company of Heroes 2
Shared: Strategy · Tactical · War

Police Stories
Shared: Action · Strategy · Top-Down Shooter

Taur
Shared: Strategy · Action · Tower Defense

X-Morph: Defense
Shared: Strategy · Action · Tower Defense

Total War: WARHAMMER II
Shared: Strategy · Action · War

Halo: Spartan Assault
Shared: Action · Top-Down Shooter · Strategy

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

Total War: THREE KINGDOMS
Shared: Strategy · War · Action

Creeper World 4
Shared: Tower Defense · Strategy · 3D

Dungeon Defenders
Shared: Tower Defense · Strategy · Action

XCOM 2
Shared: Strategy · Tactical · War

Kingdom Rush Vengeance - Tower Defense
Shared: Strategy · Tower Defense · Action

Call to Arms
Shared: Strategy · Action · Tactical