Artifacts AFK Farming Universal Tower Defense Guide!
Farming artifacts in Universal Tower Defense can feel exhausting, especially if you rely on manual runs or risky macro tools. The good news is that there is a simple and safe method to AFK farm hundreds of artifacts using only in-game features. This approach works even if you do not know how to use macros like TinyTask, and it lets you keep using your PC while farming.
This guide explains the easiest AFK artifact farming method step by step, based on how the AFK Chamber actually works in Universal Tower Defense. Also check out our Universal Tower Defense Codes & Tier List for more rewards!
Why AFK Artifact Farming Matters
Artifacts play a huge role in boosting unit damage, cooldown, range, and special effects. If you want stronger builds, better DPS, or optimized support units, farming artifacts consistently is a must. Doing this manually takes time, while macro usage is not always comfortable or reliable for every player. Using the AFK Chamber correctly solves all of these problems.
Step 1: Clear Nightmare Stages as Fast as Possible

The first step is very important. You need to clear the Nightmare difficulty of the stage that drops the artifact set you want.
Some key points to remember:
- Early acts usually drop Master sets more often
- Later acts usually drop Junior sets more often
- Each map has different artifact priorities depending on the act
- Always aim for your fastest clear time
Before moving on, make sure your clear time is as low as possible. Faster clears mean faster AFK cycles later.
Step 2: Use the AFK Chamber Correctly
After clearing the stage, go to the AFK Chamber. This feature works differently compared to other tower defense games.
Here is how it works:
- You can select a specific map, act, and difficulty
- The AFK Chamber simulates your fastest clear
- All normal drops from that act can be obtained
- Artifacts still drop, even if they do not show visually
The only major difference is that gem rewards are very small, but artifact and XP farming still works perfectly.
Step 3: Understand AFK Clear Time Scaling

AFK clear time is calculated like this:
- Base time = your fastest manual clear
- AFK Chamber multiplies it by 0.75
- If you have VIP and Premium, the time is reduced further
For example:
- Manual clear: 2 minutes 52 seconds
- AFK clear: around 3 minutes 30 seconds
This means you get an artifact roll every few minutes without touching the game.
Step 4: AFK Safely Without Getting Kicked
To avoid being removed from the AFK Chamber:
- Use a simple auto clicker
- This prevents the game from forcing you back to default maps
- No complex macro is needed
This method lets you AFK overnight or while doing other tasks.
Step 5: Best AFK Farming Tips
- Always clear stages at 75% difficulty for faster times
- Higher clear percentages do not improve AFK rewards
- AFK Chamber drops XP very efficiently
- Overnight AFK can give dozens of player levels
This makes AFK Chamber one of the best XP farming methods in the game.
Artifact Stat Restrictions You Should Know
Not all artifact stats can appear on every piece:
Bottom Pieces Can Roll:
- Critical Rate
- Cooldown Reduction
- Range
- Damage
Top Pieces Can Roll:
- Damage
- DoT Damage
- Critical Damage
- Hyper Armor Damage
Some stats like DoT or Crit Damage cannot appear on pants, which explains why certain builds feel impossible to complete. This is a system limitation, not bad luck.
Why This Method Is Better Than Macros
- No external software required
- Safe and consistent farming
- You can use your PC freely
- Perfect for overnight sessions
- Works for all artifact maps
While macros may give slightly higher efficiency, this method is stress-free and accessible to everyone.
AFK farming artifacts in Universal Tower Defense does not need macros, scripts, or complicated setups. By clearing Nightmare stages quickly and using the AFK Chamber properly, you can build a massive artifact collection with almost no effort.
If you are aiming to optimize builds, level up faster, or prepare for endgame content, this AFK method is one of the most reliable strategies available right now. Keep refining your clear times, choose the right maps, and let the AFK Chamber do the work for you.
Universal Tower Defense