exit - nesbox/TIC-80 GitHub Wiki
exit()
This function causes program execution to be terminated after the current TIC function ends. The entire function is executed, including any code that follows exit(). When the program ends you are returned to the console.
See the example below for a demonstration of this behavior.
Example

-- title: exit API Command Demo (Lua)
-- author: StinkerB06
function TIC()
cls(0)
print("Press Z to exit to console.",1,1)
if btn(4) then
exit()
trace("This code still runs!")
end
end