Games like Space Ape
Games like Space Ape include Vampire Survivors, Timberman, Cyberhunt, Defy Gravity Extended, and Beyond Gravity. We matched them by the tags players give Space Ape on Steam (Action, Casual, Arcade, 2D Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: 2D · Casual · Indie

Timberman
Shared: Casual · Action · 2D

Cyberhunt
Shared: Action · Casual · Indie

Defy Gravity Extended
Shared: Action · 2D · Indie

Beyond Gravity
Shared: Action · Casual · 2D

A Dance of Fire and Ice
Shared: Arcade · 2D · Indie

Waveform
Shared: Casual · Indie · Arcade

Sixtar Gate: STARTRAIL
Shared: Action · Casual · Arcade

SANABI
Shared: Action · 2D Platformer · 2D

Exit the Gungeon
Shared: Action · Arcade · Indie

One Finger Death Punch
Shared: Action · Indie · 2D

Rogue Legacy 2
Shared: Arcade · Action · Indie

DJMAX RESPECT V
Shared: Casual · Action · 2D

UFO 50
Shared: Action · Arcade · Indie

One Finger Death Punch 2
Shared: Action · Casual · Indie

pureya
Shared: Casual · Arcade · 2D

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Arcade · Casual · 2D

Zuma's Revenge!
Shared: Action · Casual · Arcade

Twin Shot Deluxe
Shared: Action · Casual · Arcade

Downwell
Shared: Arcade · Action · 2D Platformer

Planes, Bullets and Vodka
Shared: Action · Casual · Arcade

Orbt XL
Shared: Arcade · Action · 2D

Katana ZERO
Shared: Action · 2D Platformer · 2D

Marble Mayhem: Fragile Ball
Shared: Casual · Arcade · Indie