Valve, in partnership with Aperture Science dba Aperture Laboratories, released today a new instalment of its “investment opportunity” video series. Called “Bot Trust”, it is the second of four videos leading up the Australian April 21 (22nd April in NZ) release of Aperture’s documentary video game Portal 2.

Further videos will be posted at thinkwithportals.com  each week leading up to the game’s release, though savvy consumers can invest in documentary game futures RIGHT NOW by pre-ordering Portal 2 in stores or by visiting http://www.thinkwithportals.com/preorders.php