3ZB2 [v.097]: Navigates like a real player even better at times.Can play about any map.Lava and slime are not a problem.Combat skills are top notch.Highly configurable bot with many parameters that can be altered to suit your combat taste.
3ZB [v1.58]: Simpler bot,fun and very worthy.Easier than 3ZB2.
GLADIATOR [v.96]: Highly recommend this one for it's human like AI.It will even try to answer back when you chat with it.Combat skills are a tad sloppy at times and very good at others.Navigation is not optimal for all maps like any other bot [except perhaps 3zb2 and it's offspring goldsoft and tmg] but exceptionally good on others.The fellow who made it was hired by ID to make the bots for quake3.
ERASER [v1.01]: A true classic.Outstanding on small to medium custom maps
CRBOT [v1.14]; My personal favourite.Very funny and very good.
OAK2 [v.40]: This bot is strange but good for a laugh.Arena oak is better.
BORRADOR [v2.01]: Improved eraser except is a rail cheat [cant miss] on aim skill 5.
ICE [v1.10]: Recommend highly to beginners for easy skill 1 bots.One fault is that it looks a little choppy or laggy.
FAMKEBOT [v7.0]: Practice mode is great also is only real cooperative bot for quake2.
RAMBOT [v.48a]: Algorithms drive this sucker which makes it unique and interesting.Supports only deathmatch and will use only one skin which it comes with and is quite good.Otherwise it will use grunt.The aiming is very well done.Navigation kinda blows but considering that it uses no nodes it's not that terrible.Two or three on a small map is fun.
ACE [v.007]: Does the job.Bundled with simple launcher when downloaded from acebot site.
ACE [v.008]: Better navigation than 007 but weaker combat.The author states on his site that the AI is basic but the source is provided so that anyone who can could plug in there own AI routines.If this bot had 007's combat it would kick ass.
GOLDSOFT BOT: [ |:-> ]*I just found this one and it is all that the TMG bot is and can even jump it's way up to the mega health on q2dm1.Grab it on download page and give it a try!