 Team Fortress creator Robin Walker recommended " SpaceChem " on Steam , calling it " Pretty much the greatest game ever made " . Gamasutra named SpaceChem the best indie game of 2011 . Though total sales of the game are unknown , at least 230 @,@ 000 copies were purchases as part of the game 's inclusion in the Humble Indie Bundle . Barth stated that with sales of SpaceChem , he was able to quit his job at Microsoft and run his development company full @-@ time . Ryan Sumo , the freelance artist for the game , gained recognition in the industry and went on to help develop the art for Prison Architect . 
