Joseph Whitworth has made a series on tutorials about game AI development. Although the first part is one year old, you can find useful pointers on how to build NPCs that react on game events, follow and find things etc. You can watch the whole series on YouTube
- part 1
- part 2
- part 3
- part 4
- part 5
- part 6
- part 7
- part 8
- part 9
- part 10
- part 11
- AI Jumping Across Gaps
Unreal Engine Pathways 