It's a small class of video games that still draw interest or inspire an active community 20 years after their first release — even if we're now 40 years into the era of commercial video games. Games like Doom, the several iterations of Civilization, and the Mario Brothers franchise will probably be around and played in some form many decades hence. The X-COM family of games fits, too, having inspired various spiritual successors since its release in 1994. Now, an anonymous reader writes that the open source (GPL) " OpenXcom 1.0 is finally released, after 5224 commits, 1843 days, and 606 resolved issues since v0.9. 20 years of X-COM — XCOM oldschool lovers enjoy!"