The process for redeeming codes in All Star Tower Defense X is thankfully a simple one. So, now that you know which codes are working, here's how to use them. Login to Roblox and load up the All ...

First, launch All Star Tower Defense on your device through the Roblox app. Select the Settings button once you're in the game. Then, enter a working code into the text box.

Expired Codes. As is the case with most Roblox games, Gym Star Simulator codes are only active for a limited time. Afterward, they will expire, thus becoming unable to use any longer. Fortunately ...