Games like Flip-Off
Games like Flip-Off include Bloons TD 6, Kingdom Rush - Tower Defense, Plants vs. Zombies GOTY Edition, Bloons TD 5, and Kingdom Rush Frontiers - Tower Defense. We matched them by the tags players give Flip-Off on Steam (Strategy, Action, Side Scroller, Tower Defense, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer

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

Plants vs. Zombies GOTY Edition
Shared: Strategy · Tower Defense · Casual

Bloons TD 5
Shared: Strategy · Tower Defense · Action

Kingdom Rush Frontiers - Tower Defense
Shared: Strategy · Tower Defense · Singleplayer

ICEY
Shared: Action · Female Protagonist · Side Scroller

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

Thronefall
Shared: Strategy · Tower Defense · Action

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

Sanctum 2
Shared: Strategy · Tower Defense · Action

Tangy TD
Shared: Strategy · Action · Tower Defense

Totally Accurate Battle Simulator
Shared: Strategy · Funny · Singleplayer

Rock 'N' Roll Defense
Shared: Strategy · Tower Defense · Action

Orcs Must Die! 2
Shared: Action · Strategy · Tower Defense

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

Sanctum
Shared: Strategy · Tower Defense · Action

Kingdom Rush 5: Alliance TD
Shared: Strategy · Tower Defense · Singleplayer

Rogue Tower
Shared: Strategy · Tower Defense · 3D

Stickman Trenches
Shared: Strategy · Action · Side Scroller

Aliens: Dark Descent
Shared: Strategy · Action · Singleplayer

Portal
Shared: Female Protagonist · Singleplayer · Action

Kunitsu-Gami: Path of the Goddess
Shared: Strategy · Action · Tower Defense

Rock of Ages
Shared: Strategy · Action · Tower Defense

Defense Grid: The Awakening
Shared: Strategy · Tower Defense · Singleplayer