I did not make any of the games listed here. Rather, this is my personal collection of Open-Source games you can play directly in your browser.
Enjoy!
Also take a look at Libre Game Wiki for additional (not necessarily browser-based) games.
Parallel Overhead
Parallel Overhead is an endless runner game where you take control of the ships Truth and Beauty on a groundbreaking trip through hyperspace. A stable hyperspace tunnel is finally being achieved with two ships locked to the opposite walls of the tunnel. Well, almost stable...
Friday Night Funkin'
Friday Night Funkin' is a free-to-play and open-source rhythm game. Developed by a team of four Newgrounds users, the game has a play style that is similar to Dance Dance Revolution and PaRappa the Rapper, with an aesthetic reminiscent of Flash games popular in the early-to-mid 2000s.
The game revolves around the player character, simply named "Boyfriend", who has to defeat a variety of characters in singing and rapping contests for him to be able to date his love interest, "Girlfriend".
â Wikipedia
Uh oh! Your tryin to kiss ur hot girlfriend, but her MEAN and EVIL dad is trying to KILL you! He's an ex-rockstar, the only way to get to his heart? The power of music...
â Itch.io
Made for the Ludum Dare 47 (2020)