12 Steam Next Fest game demos you must play
https://www.pcworld.com/article/1965182/12-steam-next-fest-game-demos-you-must-play.html?fbclid=IwAR3QdLK1OkVcBTjfaoK6m72VOeD_lX74ECg2bsFBpjOgp0TEWJpxqIdrsmQ

Half-Life 2 mods: http://forums.steampowered.com/forums/showthread.php?t=1950706

Follow Freeman mod: http://www.youtube.com/watch?v=wB2XH411CGE

For fans of Portal: http://soundcloud.com/xihilisk/still-alive-from-portal-slowed-down-800

For fans of S.T.A.L.K.E.R.: Shadow of Chernobyl :

https://www.atlasobscura.com/articles/chernobyl-pripyat-before-disaster?utm_source=Atlas+Obscura+Daily+Newsletter&utm_campaign=fa7614f3b8-EMAIL_CAMPAIGN_2019_04_24_Not_Chicago&utm_medium=email&utm_term=0_f36db9c480-fa7614f3b8-67044853&ct=t(EMAIL_CAMPAIGN_04_24_2019_Not_Chicago)&mc_cid=fa7614f3b8&mc_eid=fc5500a16d

https://www.livescience.com/chernobyl-smoldering-nuclear-reactions-again.html