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[Aichuk]

I remember playing Creatures and beating up all the norms (isn't that what they're called)?

[Itnetlolor]

I remember F.E.A.R impressed me at the time with its AI.  The bad guys would actually go and flank you and try to attack from multiple directions.  I know somebody might say that isn't real AI, but for me its the perception that is important.

It's even funnier when you learn that the devs didn't really intend to make it that good. Unfortunately, with AI vs AI, it isn't that good since they only do that against you, the player.

S.T.A.L.K.E.R., my goodness, S.T.A.L.K.E.R....

I had a group of dogs corner me towards a bloodsucker and a pair of snorks also decided to join in on the fun. Needless to say, I was overwhelmed, regardless of my skill. Post-mortem, a group of bandits made their way to me, and I was used as bait, by those damned blind dogs. I actually felt bad for the bandits.

Fortunately other AI make the hilarious/unfortunate mistake of walking into an anomaly, and turning into (INSERT CREATURE HERE) juice/rain.

[werty892]

I remember F.E.A.R impressed me at the time with its AI.  The bad guys would actually go and flank you and try to attack from multiple directions.  I know somebody might say that isn't real AI, but for me its the perception that is important.

It's even funnier when you learn that the devs didn't really intend to make it that good. Unfortunately, with AI vs AI, it isn't that good since they only do that against you, the player.

Same thing happened with Half-Life and the special forces guys.

[Mech#4]

Yah, I remember watching a video showing how the Combine forces use group tactics to surround an enemies position, covering fire and staying close together.

[i2amroy]

I remember F.E.A.R impressed me at the time with its AI.  The bad guys would actually go and flank you and try to attack from multiple directions.  I know somebody might say that isn't real AI, but for me its the perception that is important.

It's even funnier when you learn that the devs didn't really intend to make it that good. Unfortunately, with AI vs AI, it isn't that good since they only do that against you, the player.

I actually read a paper published by the devs on their AI pretty recently. Turns out there is quite a bit of fakery going on there, where they stuck spoken phrases into the game to make the player believe the AI was being super intelligent when a lot of it was just a combination of rather simple ideas leading to emergent behavior. Still a pretty snazzy way to handle squad-based AI though.

[puke]

just a combination of rather simple ideas leading to emergent behavior

I think that this is the definition of good AI. 

Fakery would be simple levels where AI follow simple patterns and it seems like they're flanking you or whatever, but actually they are just following a simple script and the nature of the level means that the NPC's script will have them flanking you most of the time.  But they're not actually thinking about flanking you.

Emergent behavior generally means that something is producing novel results by following a set of rules -- even if that set of rules is algorithmic and not necessarily "smart", it is still responding situationally to dynamic circumstances.  This, while it may be simple, is bona-fide AI.

I have not listened to this FEAR dev interview thing, so maybe I am misunderstanding you. 

My money is on anything by SSI for having boss AI.

Also, serious hat-tip to all the modders and hackers that made custom AI for Space Empires IV.  Some of those guys were fucking rockstars, and did amazing things with very limited resources.

[Anvilfolk]

I remember F.E.A.R impressed me at the time with its AI.  The bad guys would actually go and flank you and try to attack from multiple directions.  I know somebody might say that isn't real AI, but for me its the perception that is important.

Was just about to say this! Most definitely. It was cool because they said what they were doing, making it easy for you to spot how smart they were being.

Insurgency has some of the craziest, but good A.I. I've seen. Although it is co-op, it still is really intense against the A.I., especially when you play the hardest difficulty.

RRRR PPPPP GGGGGG *BOOM*

https://www.youtube.com/watch?v=XC5BGFGnMQU <- funny video.

Did they ever fix that?

[hawkeye_de]

Galactic Civilication II has a good AI and does not cheat on standard levels - in contrast of the AI of Civilization..

[Sharp]

I remember F.E.A.R impressed me at the time with its AI.  The bad guys would actually go and flank you and try to attack from multiple directions.  I know somebody might say that isn't real AI, but for me its the perception that is important.

It's even funnier when you learn that the devs didn't really intend to make it that good. Unfortunately, with AI vs AI, it isn't that good since they only do that against you, the player.

Wait what? The F.E.A.R. AI was developed fairly well, the guy invented GOAP for it which is a nice take on using Planning in an AI system which can be much better then simple Finite State Machines that most games use and can lead to much more emergent behaviour unlike FSMs which are pretty simple and repetitive. A nice dream would be combining GOAP with some Machine Learning so it can update and create it's own plans for victory based on previous results and maybe throw some opponent modelling in there so it can counter specific play styles when it knows who the player is.

[sambojin]

Stars! had a pretty good, non-cheaty AI for a 4X game. If you hacked in decent races for the computer to use it was absolutely terrifying at max level vs 8+ of them. Used both the PRTs and LRTs well, could set up a reasonable defense with minefields etc, and could mount a decent attack sometimes.

Really wish Stars! Supernova got released, it would have been great.

[motorbitch]

sword of the stars 1 has a bad ass ai.

[Nighthawk]

Pac-man.

[Parsely]

ARMA small squad AI can be fascinating.

[Flying Dice]

It's a 4X, but the higher-difficulty AI in GalCiv 2 is amazing.

[Kolbur]

I only played the basic Galactic Civilizations II but even at the highest difficulties the AI is downright anemic. It's only a challenge (if at all) due to the massive bonuses it gets (the trademark of all bad AI difficulty settings).