Games similar to Chasm include Cave Story (Dokutsu Monogatari), which is free. Other options are Hollow Knight, Super Meat Boy, Frogatto & Friends and Ori. You're spoiled for choice with Platform Games like Chasm: we list more than 50 alternatives for Windows, Mac, Linux, iPhone and iPad.
Robin just wants to be a mechanic and help people, but without a license she’s a sinner in Mother’s eyes.
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Sword Of Dimensions is a platform game with elements of environmental puzzle. You control lone traveler who accidentally finds a way to strange world with no sunlight. Grab your sword and prepare for long journey.
Sealed Bite is a Metroidvania style platformer where you’re running against the clock to find crystal shards that prevent you from turning into a werewolf.
Alex the Allegator is a series of games that I, Johan Peitz, usually use for game coding challenges like Speedhack and Ludumdare.
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SpainEU
Megaman Unlimited is a Megaman fan-game in the classic 8-Bit NES style both in sound and visuals. It is similar to Megaman 3 and Megaman 9-10 in design philosophy. MMU is made by fans for fun. It is not related to the official series’ canon.
Canada
Slime Rancher is the tale of Beatrix LeBeau, a plucky, young rancher who sets out for a life a thousand light years away from Earth on the ‘Far, Far Range’ where she tries her hand at making a living wrangling slimes.
United States
"Of Light & Shadow" is an award winning sidescroll puzzle-platformer for PC/Mac with a slight twist; the game combines two areas in each level, light and shadow, as well as two protagonists in one playable character, Mr. Light and Dr. Shadow.
Eternal Daughter is a freeware action-adventure game. The protagonist, Mia, is daughter of the Lorian priestess and an unknown father. Like the rest of her people, she is enslaved to do menial labor, under the supervision of her half-brother Hume.
United States
Toad Strikes Back is fan game based on classic Super Mario Bros. titles. It stars Toad from the Mario series.
The gameplay in Toki Tori is a blend of two genres. While it looks like a platform game, it’s a puzzle game by heart.
NetherlandsEU
A Megaman game with more than thirty bosses and powerups in a huge, Metroid-style world.
