It was added on 28 June 2013 to Steam Greenlit and Steam Early Access on 19 September 2013 .
It was Steam Greenlit on 28 June 2013 and entered Steam Early Access on 19 September 2013 .
It was Steam Greenlit on 28 June 2013 and entered Steam Early Access on 19 September 2013 .
解释一下这段文字: It was added on 28 June 2013 to Steam Greenlit and Steam Early Access on 19 September 2013 . 输出: