 SpaceChem was ported to the iPad in October 2011 , using touch controls instead of mouse and keyboard to manipulate the visual program . An Android port was released in July 2012 . Both mobile platforms include most of the full game excluding the defense puzzles . The sandbox mode was added at the request of a player who was trying to explore SpaceChem computational abilities . Alongside the sandbox mode , Zactronics offered a contest for the most interesting sandbox creation . This same user was able to demonstrate a brainfuck interpreter within SpaceChem , claiming that the visual programming language was Turing complete . Barth has mentioned the possibility of a sequel in an interview with IndieGamer . 
