Roblox Game AI for Teens: Enemy Behavior With State Machines

Professional game developers use finite state machines to control enemies, bosses and creatures. In this advanced eight-week course teens aged 12 to 15 learn to design and code game AI the way studios do.

Learners begin by studying how classic game enemies behave and diagramming their states, such as idle, patrol, chase, attack and return. They then implement a finite state machine in Lua using ModuleScripts, with clear rules for switching between states. Next they add sensing, including distance checks, field of view and hearing triggers, so enemies react believably.

In the middle weeks learners integrate PathfindingService so enemies navigate complex maps, and they add cooldowns, memory of the player's last known position and group behaviors where enemies coordinate. Learners focus on non-graphic gameplay, such as tagging, freezing or capturing, keeping the course appropriate for younger teens.

In the final weeks learners tune difficulty by adjusting speed, reaction time and detection range, and they test whether enemies feel fair and fun. They build a short stealth or survival level and present their state machine diagrams and code.

The teacher explains concepts with diagrams and code reviews. By the end of the course, learners will have a working enemy AI system they can reuse and extend in future Roblox projects. Learners should be comfortable with Lua functions, tables and events.

How classes work

Each class introduces a game AI technique with diagrams and live coding. Learners implement it, test it in their level and review code together.

What we'll cover

• Week 1: Enemy States – Diagram idle, patrol, chase and return states.

• Week 2: Finite State Machine – Implement an FSM in a ModuleScript.

• Week 3: Sensing – Add distance, field of view and hearing.

• Week 4: Pathfinding – Navigate complex maps.

• Week 5: Memory and Cooldowns – Track last known positions and pace actions.

• Week 6: Group Behaviors – Coordinate several enemies.

• Week 7: Difficulty Tuning – Adjust speed, reaction and detection.

• Week 8: Stealth Level and Review – Build a level and present diagrams and code.

Comfortable with Lua functions, tables and events. Experience with ModuleScripts is helpful.