The End Is Nigh is described as 'sidescrolling platformer where you play as Ash, one of the few things to have survived the end of the world. And now, you must survive near endless obstacles in a deadly adventure where you'll die a lot'. There are six games similar to The End Is Nigh for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and Android. The best alternative is Alex the Allegator, which is both free and Open Source. Other The End Is Nigh like games are Super Meat Boy (Paid), They Bleed Pixels (Paid), N : The way of the Ninja (Free) and Mighty Pixel Boy (Free).
Alex the Allegator is a series of games that I, Johan Peitz, usually use for game coding challenges like Speedhack and Ludumdare. Whilst most of my games reside on Free Lunch Design, this is the place for the Alex' series and the even the source for these games. Let's go! Represent entire series of Alex the Allegator games including Alex the Allegator 1, 2, 3, and 4.
Super Meat Boy is a platform game developed by Team Meat and is the successor to Edmund McMillen's and Jonathan McEntee's flash game, Meat Boy, originally released on the Newgrounds website in October 2008.
Help Pixel Boy escape the dreadful Temple of Ikov where he's been held a prisoner for a long time. Escape from one room to another and embark on a thrilling Arcade adventure as you play over 30 different levels, one more difficult than the other.
spaceBOUND is a brutally challenging solo or co-op puzzle-platformer. Players control two astronauts who must overcome deadly obstacles while solving physics-based puzzles in a zero-gravity environment.