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Games like 1999: Megallennium 6-in-1 Mega Cart
If you finished 1999: Megallennium 6-in-1 Mega Cart, the closest matches are Lovers in a Dangerous Spacetime, Sugar Tanks Arena, OIC: Obviously Inappropriate Content, A Buttload of Free Games and Terminal House. All 36 share its adventure genre and are ranked by how closely their themes and modes overlap.
83
Lovers in a Dangerous Spacetime
Sugar Tanks Arena
OIC: Obviously Inappropriate Content
A Buttload of Free Games
Terminal House
74
No Man's Sky
89
UFO 50
79
Biped 2
95
The Binding of Isaac: Rebirth
90
Arcade Paradise VR
90
Arcade Paradise
83
Atari 50: The Anniversary Celebration
Tower Unite
81
Noita
82
Observation
88
What the Golf?
87
Rare Replay
70
LumbearJack
73
Rain on Your Parade
72
Snake Pass
80
Electronic Super Joy
73
Retro City Rampage
90
Super Star Path
84
Mega Cat Studios Collection 2
60
Rise & Shine
74
ChromaGun
Stay Out of the House
76
Time Loader
77
Road to Ballhalla
Please, Touch the Artwork
Endoparasitic
71
Sublevel Zero: Redux
72
Pile Up! Box by Box
76
Taito Legends 2
74
Tower 57
70