M Wasannin Frictionalsanar game da buɗe cikakkun lambobin tushe na wasannin 3D a cikin nau'in "rayuwar mafarki mai ban tsoro" - Amnesia: Darkarfin Duhu и Amnesia: Na'ura don Aladu, wanda aka saki a 2010 da 2013. Kaddarorin wasan sun kasance na mallaka. Wannan ba shine karo na farko da aka buga lambar wasan Frictional ba; a cikin 2010, kamfanin ya buɗe game code engine Saukewa: HPL1 kuma an rubuta game da shi "Penumbra: Girma".
An buɗe lambar wasan a ƙarƙashin lasisin GPLv3 kyauta kuma an buga shi akan GitHub (Amnesia: Darkarfin Duhu, Amnesia: Injin Ga Aladu). An rubuta wasannin a cikin C++ kuma ana amfani da SDL don sarrafa shigarwa da OpenGL don zane-zane. Ma'ajiyar ajiyar sun haɗa da fayiloli don gina Linux da macOS ta amfani da CMake da kuma don Windows ta amfani da Visual Studio 2010. Bugu da ƙari ga lambar don wasannin da kansu, lambar tushe don masu gyara wasan da ke hade kuma bude tushe ne. Ana sa ran bude tushen lambar zai sauƙaƙa ci gaban mods, wanda akwai fiye da dubu don waɗannan wasannin, kuma zai ba da damar ƙirƙirar sabbin injunan wasan buɗe ido dangane da fasahar da ke cikin wasannin Amnesia. .
Daga cikin abubuwan da aka bayar a buɗaɗɗen tushe waɗanda za su iya zama masu amfani ga masu haɓaka injin wasan, ana lura da waɗannan: