Im currently working on a small game that should run on lowend devices like 1st gen firefoxos phones, its some sort of space discovery/adventure/simulation game but all very basic.
There will be missions but its also like a small sandbox where you can do what you want with your limited resources (oxygen&fuel), you can also orbit things that have gravity like planets and asteroids and stuff, you can grab and place objects such as sattelites and you also can get them to orbit another object ...and way more to come
check out the litte video i made about the things you can do so far!