March 2011, jawaab u ah abuurista mod toogasho dugsiga xaq "", horumariyo by Checkerboarded Studios on engine Source Valve ee, Thompson emailed agaasimaha maamulka Valve ee, Gabe Newell, dalbanaya in mod in laga saaro, sida uu u maleeyay in Valve ka ciyaaray qayb ka mid ah horumarinta mod ee. Warqadda, Thompson wuxuu ku sheegay in "Nolosha Nus" ay si toos ah mas'uul uga ahayd xasuuqii dugsiga Erfurt
, iyo sidoo kale xasuuqii Virginia Tech iyo in Valve ay haysato ilaa 5:00 galabnimo ee Maarso 18 si ay uga saarto mod-ka.