Dungeon Defenders

Similar to the survival trophies on Medium, you need to reach Wave 10 on Insane. The trophies are stackable so if you reach Wave 15 on Insane difficulty, you will get the Tough Guy and Survivalist trophies, and if you manage to get to Wave 20, you will get the Thick Skin trophy as well though it is recommended you reach Wave 20 on Medium difficulty instead due to the glitch as described above.

Again, the areas recommended are similar to the ones described above in the Thick Skin trophy. Only difference is monsters are tougher and stronger.