Hello! Since we released Closure over a decade ago now, it's gained a number of technical issues and hardware incompatibilities that have impeded the experience of running the game on PC due to OS and hardware changes over the years and the increasing popularity of high res monitors and whatnot. For that reason we are doing a maintenance update which will go live sometime in January that updates a bunch of libraries used to newer, more stable versions (the main one being SDL to SDL2) which should fix issues with the window opening too large or not matching the size of the monitor or not respecting high res scaling settings, various issues with controller support, and ports the shaders over to GLSL which should fix issues where certain graphics cards would do unexpected things with the shaders (which, in the worst cases, could even cause you to fall through the ground!). Also with this update is refreshed mac and linux support, while the game will not support Apple Silicon macs right now, if you still have an intel mac the game should work again there. I will re-list the mac version on the store page when the update goes live. To help test the update, please subscribe to the Maintenance Update Beta branch on steam, update the game, and give it a try! We are looking to make sure that nothing about the game broke during this update, and that all the previous issues have been fixed, especially if you are on mac or linux! So please if you feel like replaying the game or playing it for the first time, subscribe to that beta and let me know how it goes! Thanks, - Tyler (notes: To replay the game from the start, you have to open up the game's settings and change the save file name in /Resources/settings.cfg Also, the game still always displays the default keyboard control prompts even if you're playing on controller or rebound the keys. I am looking into fixing both of these long-standing annoyances with the maintenance update or sometime after, but those fixes aren't yet in. Lets make sure the compatibility stuff is fixed first)