December 11 event · Empire of Sin and Worms Rumble released
December 21 event · Pikmin released in North America
December 32 events · The original PlayStation launches in Japan
December 42 events · Mario Kart 7 (North America)
December 52 events · Alien: Isolation launches on Switch
December 61 event · The Last Guardian finally released
December 71 event · Super Smash Bros. Ultimate released
December 81 event · Doom Eternal launches on Nintendo Switch
December 91 event · Persona 4 released in North America
December 103 events · Doom launches and changes PC gaming forever
December 111 event · Medal of Honor: Above and Beyond released
December 121 event · The Game Awards 2019: Sekiro wins Game of the Year
December 132 events · EA lands the exclusive NFL license
December 141 event · Super Mario Advance 2 (Japan)
December 151 event · Collection of SaGa: Final Fantasy Legend (Switch)
December 161 event · Elite Dangerous released
December 171 event · PlayStation Vita launches in Japan
December 181 event · Final Fantasy debuts in Japan
December 192 events · Kid Icarus released in Japan
December 201 event · Star Wars: The Old Republic launches
December 211 event · Baldur's Gate released
December 221 event · Tetris released for Famicom in Japan
December 231 event · id Software releases Doom's source code
December 241 event · Mega Man 2 released in Japan
December 252 events · Pikmin's Wii remake released in Japan
December 261 event · Nightcaster released for Xbox
December 272 events · Star Ocean: First Departure released in Japan
December 281 event · Gran Turismo 4 released in Japan
December 291 event · Shenmue released in Japan
December 301 event · Sonic Heroes released in Japan
December 311 event · Artech Studios closes its doors