"DOOM, DOOM II, Quake: Free Add-Ons, Limited Time Download, and SIGIL II Celebrate 30 Years of Gaming"
To celebrate the 30th anniversary of DOOM, new free add-ons have been released for DOOM and DOOM II, including the Sigil II episode by John Romero. Additionally, Quake has received a free QDOOM add-on that reimagines the classic maps of DOOM within the Quake engine. These add-ons are available on various platforms and offer fans a chance to experience new content and revisit nostalgic levels.