http://missingsentinelsoftware.com/
Most notably:
http://josefnpat.itch.io/xapalus-deluxe http://josefnpat.itch.io/mass-warfare http://josefnpat.itch.io/judgementarena http://hdfgame.com/ http://www.collidergame.com/
I ended up using luajit FFI to call into C to calculate lighting. I wonder what the FFI support is on the android/ios ports.
I don't know how Terraria does it (never played) but I suggest you that you only moved the camera when it's necessary (instead of keeping the character in the center literally always). The camera jumping along with the character might even let the player dizzy...
It is open-source and based on community effort. https://www.reddit.com/r/hawkthorne https://github.com/hawkthorne/hawkthorne-journey
Photo: http://shakilthakur.com/content/images/2014/11/Screen-Shot-2...
https://www.tbmatuka.com/blog/2014-05-31
https://github.com/tbmatuka/hennin
If anyone would like to knock a thing or two off the ToDo list, I'd appreciate it :)
The game supports lag-free rollback netplay using GGPO, and Steam matchmaking with ELO leaderboards
And since LÖVE uses lua, mod support is no problem to implement, so we'll have steam workshop support too (It's not released on Steam yet but will be soon!)