Games like Frontline Crisis
Games like Frontline Crisis include Age of Darkness: Final Stand, Mindustry, The King is Watching, They Are Billions, and From Glory To Goo. We matched them by the tags players give Frontline Crisis on Steam (Tower Defense, Top-Down Shooter, RTS, Strategy, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Age of Darkness: Final Stand
Shared: Tower Defense · RTS · Strategy

Mindustry
Shared: Tower Defense · RTS · Strategy

The King is Watching
Shared: Tower Defense · RTS · Strategy

They Are Billions
Shared: Strategy · Tower Defense · RTS

From Glory To Goo
Shared: Tower Defense · RTS · Strategy

Warpips
Shared: Tower Defense · Strategy · RTS

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

Creeper World 3: Arc Eternal
Shared: Tower Defense · Strategy · RTS

Tower Dominion
Shared: Tower Defense · Strategy · RTS

Thronefall
Shared: Tower Defense · Strategy · Action RTS

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

Cossacks 3
Shared: RTS · Strategy · Resource Management

Cluckmech Oasis
Shared: Tower Defense · Strategy · Top-Down Shooter

STAR WARS™ Empire at War - Gold Pack
Shared: RTS · Strategy · Space

Age of Mythology: Retold
Shared: RTS · Strategy · Resource Management

Wall World
Shared: Tower Defense · Pixel Graphics · Strategy

Bloons TD 6
Shared: Tower Defense · Strategy · Singleplayer

Iron Harvest
Shared: RTS · Strategy · Mechs

Rise to Ruins
Shared: Tower Defense · Strategy · Pixel Graphics

Border Pioneer
Shared: Tower Defense · Strategy · RTS

Creeper World 4
Shared: Tower Defense · RTS · Strategy

Age of Empires III: Definitive Edition
Shared: Strategy · RTS · Base Building

Starship Troopers: Terran Command
Shared: RTS · Strategy · Tower Defense

Diplomacy is Not an Option
Shared: RTS · Tower Defense · Resource Management