How to AFK the Ascensions & Get Unit EXP Fast All Star Tower Defense X ASTD X Guide
If you’re looking for a simple way to complete ascensions and gain lots of experience for your units in All Star Tower Defense X (ASTD X), this guide is for you. With just a little setup, you can AFK through waves and still get impressive results, saving you time while leveling up your favorite units. Also check out our ASTD X Codes and ASTD X Tier List for new players that are still playing the game.
How to AFK Ascensions and Get Unit EXP

Start by picking a strong unit that you’ve invested in. For this method, Sukuna is a great choice because of his power, even though he can be expensive to place. Here’s how to do it step-by-step:
- Enter the First Stage Again: Many players think once they finish Act One, they can’t go back. But you can simply re-enter the old dialogue and start the stage again. This is important because Act One is best for grinding experience and kills.
- Place Your Units: Let the waves skip a few rounds to build money, then place your units strategically on the map. For Sukuna, you’ll need about three placements to maximize his effect.
- Auto Mode: After placing all your units, open the unit manager and turn on auto mode for each unit. This allows your units to fight on their own.
- AFK and Let It Run: Once your units are placed and set to auto, you can step away. Your units will progress through the waves automatically, typically reaching wave 30 in about 10 minutes.
- Collect Rewards: After the run, you’ll have gained around 500 kills and a good amount of EXP from void bags and other rewards. Use these to level up your units further.
This method takes advantage of how the game handles waves and unit auto-attacks. Since you’re not rushing or pushing for higher waves, the setup is relaxed but efficient. Units like Sukuna, especially air units, can handle enemies steadily, so you don’t have to control the game actively.

Using this AFK ascension method in ASTD X is a smart way to build your units’ experience and complete ascension goals without grinding manually. It saves time, works well for many units, and helps you steadily improve your team. Give it a try, and enjoy watching your units grow stronger while you take a break. See you in the next guide!
All Star Tower Defense XASTD X