Creators can legally reuse specific open-source assets.

When a developer creates a game on Roblox, they have the option to enable or disable When Copy Lock is enabled (which is the default for most commercial games), no other user can save a local copy of that game to their Roblox Studio. The game’s source code, models, scripts, and assets remain private to the original developer and their designated team members.

Add elements from other genres. For example, introduce rogue-like deckbuilding elements where players draft random tower upgrades between waves, or add a controllable "Hero" character that players can move manually around the battlefield.

Once you acquire a safe, uncopylocked tower defense template, here is how to begin customizing it in Roblox Studio: