Tuhia he haere tonu mo tenei whitianga - I te Poutu-te-rangi 2011, hei whakautu ki te hanganga o te mod shooter kura e kiia ana ko "", i whakawhanakehia e Checkerboarded Studios i runga i te miihini Puna o Valve, i tukuna e Thompson ki te kaiwhakahaere whakahaere o Valve, a Gabe Newell, me te tono kia tangohia te mod, na te mea i whakapae ia i whai waahi a Valve ki te whanaketanga o te mod. I roto i te reta, i kii a Thompson ko "Half-Life" te kawenga tika mo te kohurutanga kura o Erfurt
, tae atu ki te kohurutanga o Virginia Tech me te mea i tae atu a Valve ki te 5:00 PM i te Poutu-te-rangi 18 ki te tango i te mod.