What are some alternatives?
When comparing Super Meat Boy and Hollow Knight, you can also consider the following products
Braid - Resource planning & scheduling for professional services
SuperTux - SuperTux is a classic 2D jump'n run sidescroller game in a style similar to the original Super...
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.
Secret Maryo Chronicles - Secret Maryo Chronicles is an Open Source two-dimensional platform game and is using an Open Graphics Library for the best possible graphic design and stock performance.
Cave Story - Cave Story Tribute Site is a tribute fansite to a Japanese game called Doukutsu Monogatari and translated under the title Cave Story.
Deadlight - 2016 TEQUILA WORKS, SL and published 2016 by Deep Silver, a division of Koch Media GmbH, Austria.