Roblox Tower Defense: Design Towers, Enemies and Waves

Tower defense games combine strategy, design and coding in one exciting package. In this eight-week course learners build their own tower defense game in Roblox Studio and learn how each part works behind the scenes.

Learners start by designing a map with a winding path and placing waypoints for enemies to follow. They then script enemies that move along the path at different speeds and lose health when attacked. Next they create towers that detect the nearest enemy within range and fire at it on a cooldown. Learners experiment with different tower types, such as fast low-damage towers and slow high-damage towers, and think about how players will choose between them.

In later weeks learners code a wave system that sends groups of enemies with short breaks in between, increasing difficulty each round. They add a currency system so players earn coins for defeating enemies and spend them on new towers. The final weeks focus on balance and polish, including adding a base health bar and a simple win or lose screen.

The teacher explains each mechanic with diagrams and live coding, and learners test strategies in each other's games. By the end every learner has a playable tower defense game with at least three tower types and five waves. Some prior Roblox Studio experience is recommended.

How classes work

Each session covers one game system with a demo and guided coding. Learners add it to their own map, then swap games with classmates to playtest and give feedback.

What we'll cover

• Week 1: Map and Path – Design a winding path and place enemy waypoints.

• Week 2: Moving Enemies – Script enemies that follow waypoints at different speeds.

• Week 3: Enemy Health – Add health that drops when enemies are hit.

• Week 4: Targeting Towers – Code towers that find and attack the nearest enemy in range.

• Week 5: Tower Types – Create fast and heavy towers with different costs.

• Week 6: Wave System – Send waves of enemies that grow harder each round.

• Week 7: Coins and Base Health – Reward defeated enemies and track base health.

• Week 8: Balance and Showcase – Balance towers and waves, then playtest as a class.

Some Roblox Studio experience is recommended. Basic understanding of variables and events is helpful.