The explosion pushed Nikolai back, almost making him fall toward the crashing waves. He held into the chains lest he falls until the explosion passed.
After that, he climbed up and walked toward the machinery. It has broken into pieces after the self-destruction: a brutal mechanism to implant.
This machinery's creator didn't want any of his works to fall into the hands of others. Nikolai walked toward the machine as a system notification rang.
[The machine dropped a reward. Do you want to keep it in your pocket dimension?]
[Mysterious Cog: this is a piece of unknown machinery. It appears to be a part of a larger set. Gathering the materials might prove fruitful.]
'A cog?' Nikolai frowned. 'This dungeon's rewards are rather peculiar.'
Dungeons usually reward crystals with the same drop rate as the outside but without the usual stat-relevance. It was a randomized reward based on the dungeon you're exploring.