The download only contains a 32 bit Windows version of the game. I use a 32 bit Linux system and Wine 1.6.2-20 to play Windows games.
Into the Portal cannot be started on my computer.
I could play complex games such as Anno 1404, Tropico 3, The Guild 2, Botanicula, S.T.A.L.K.E.R.: Shadow of Chernobyl and Shadowrun Returns on my computer.
Into the Portal doesn't work for me. *?