In the new Portal 2 Perpetual Testing Initiative is it possible to create chambers that are playable in the co-op mode?

If not at present, has Valve made any announcements to introduce this?

1 Answer 1


No, it is not possible create co-op chambers with the editor released with Perpetual Testing Initiative DLC.

Valve is working on this (I forgot now where I read it) but no official release date has been announced.

In the meanwhile you can use PTI editor to create the map and then modify it with Valve Hammer editor to make it ready for co-op.

  • that is really cool. Any idea how long they gave, or was it just 'we are working on it'? Cheers.
    – Luke
    May 28, 2012 at 16:31
  • @LukeTheDuke Valve time, could be next week or in a year. :)
    – Drake
    May 29, 2012 at 8:15
  • 1
    You need to update your answer now. :)
    – idan315
    Sep 20, 2012 at 13:34

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