Stellaris

If you don’t know some subtleties, then an alien Colossus will never attack the planet. I tried different methods, spent a lot of time and came to these conclusions.

The main feature of the trophy is to prevent foreign troops from landing on the planet. Therefore, you hire an army on the planet with at least 10,000 strength and wait for the colossus to fly by. He will definitely blow it up, since he will have no other options. Usually, planets without protection will simply be captured.

At this time, in the neighboring system you need to keep a 300-500k fleet fully charged with arc emitters and other weapons that only hit the plating, bypassing armor and shields. The goal is to kill him very quickly, otherwise he will save, and there may not be a second chance. Also, for this you need to pump up the maximum rate of fire and follow the principles for this.

This trophy took me about 20 hours. This is the most difficult trophy in all the DLC.

PS How to organize everything before this is another question. It will depend on your gaming experience. It also works with the Habitat - you can build a colossus somewhere under the noses of the awakened. Stuff the army and wait.

And yet, you need to start attacking EXACTLY when the shot started. If you kill while charging, you won't get the trophy. You will have very little time.
Video guide .