XENOMORPH TIMELINE
Aliens versus Predator 2 came out in 2001, and its multiplayer still has players. Inpu, who makes Xenomorph Timeline, wrote bots for it: Aliens, Predators and Marines that play the multiplayer classes with the same weapons and rules as players.
Two servers run them day and night. The bots live on the server, so you join with the normal game and have nothing to install.
92.222.243.147:2788892.222.243.147:27889Status checked every 30 seconds. In game, bots have [B] in front of their names; real players are shown in amber.
They play the 27 original Deathmatch maps. Evac and Overrun have no bots.
The bots are open source, under the MIT licence. A server admin downloads the latest release on GitHub and runs install.bat next to a dedicated server that has the all-in-one pack, on Windows or on Linux with Wine. Players still need only the normal game.
One file, bots.cfg, sets the number of bots per species, how often they miss and how many players the server keeps. Admin commands add or remove bots during a match.
A question, a bug, or a match to set up: come and talk on the Discord, or send a private message to Inpu_.
Join the DiscordAliens versus Predator 2 also has its page on the timeline, with the year its story takes place.