Games like Super Mario Bros. X
Super Mario Maker 2
A side-scrolling Mario adventure that unleashes the creative potential of Super Mario Maker 2 awaits in Story Mode, which contains over 100 built-in courses. And in Course Maker, a wide range of parts, tools, and more are available so you can construct your own courses. Want coin-shooting cannons? Bowser riding on a giant Goomba? Cat Mario sliding down slopes to take out an army of baddies? Go for it! You call the shots. Pass a Joy-Con controller to a partner to build co-operatively on a single system!
Pikuniku
Pikuniku is an absurdly wonderful puzzle-exploration game that takes place in a strange but playful world where not everything is as happy as it seems. Help peculiar characters overcome struggles, uncover a deep state conspiracy, and start a fun little revolution in this delightful dystopian adventure!
Forgotton Anne
Forgotton Anne is a 2d cinematic adventure game combining puzzle platforming with adventure game elements. You play as Anne, the enforcer keeping order in the Forgotton Realm, as she sets out to squash a rebellion that might prevent her master, Bonku, and herself from returning to the human world. The World of Forgotton Anne: Imagine a place where everything that is lost and forgotten goes; old toys, letters, single socks. The Forgotten Realm is a magical world inhabited by Forgotlings, creatures composed of mislaid objects longing to be remembered again.
Super Mario Bros. X2
Super Mario Bros. X2 (SMBX 2.0) is an open source evolution of Redigit's SMBX fan game engine, where the only limits are your skill and creativity.
Toby: The Secret Mine
A challenging puzzle platformer inspired by games like Limbo and Badland.
Sexy Hiking
Sexy Hiking is a freeware physics-based platformer for PC created by Jazzuo. This is the game that inspired Bennett Foddy to develop Getting Over It with Bennett Foddy.
Super Mario Bros. Mini
Sonic Re;Velocity
A 2D Sonic fan game with a heavy focus on high-speed momentum and stupidly fast platforming, with a simple control style, a unique gameplay style and a strange emphasis on going as fast as hedgehogly possible.
Sonic Adventure Blast
Sonic Adventure Blast is a fan game that aims to capture the feeling of movement in Sonic Adventure and Sonic Adventure 2, while making various changes and additions to make it feel new and unique. There are 22 different levels (plus a boss fight), with a total of 60 different missions to collect A ranks. There are also hidden NPC's hidden throughout the levels to collect. You can unlock different skins to play as by finding these hidden NPC's and getting A ranks. A large amount of levels are from Sonic Adventure and Sonic Adventure 2, but there are also plenty of levels from other games as well. Delfino Plaza and Noki Bay have been made into treasure hunting levels, where Knuckles searches for randomized emerald pieces. In Kingdom Valley, you play as Tails, who can use his fly ability to reach the many cliff ledges and structures in the level. There are four different types of missions - Normal Mode, Ring Attack, Lost Chao, and Hard Mode. Ring Attack has you collect a certain amount of rings, which vary per level. In Lost Chao, you have to search for a chao hidden somewhere in the level. Hard Mode is for treasure hunting levels, and the pieces are not randomized, but you don't have a radar, so look closely!
Super Mario
Super Mario features beautiful graphics courtesy of Bill Nagel, 13 unique enemies, 64 unique background tiles (some with animation), fast scrolling, powerups like growth or flower-power, fireballs, a somewhat-challenging boss, an animated ending scene, and an expansive easy-to-use World editor that can be run on a calculator.