Here is the full list of all 25 Solas City Heroes achievements.
Defeat 5000 enemies
Reach corruption level 10
Reach max level and unlock all the upgrades on the shop
Obtain all the enemy and boss data on a single character (excluding bonus enemies and bosses)
Defeat 50 boss enemies with a single character
Unlock 50 cloth pieces on a single character
Unlock all the base sex positions on a single character
Complete Area 3
Complete Area 4
Complete Area 5
Complete Area 6
Complete all stages with the hardcore setting enabled on a single character
Complete Area 1
Complete Area 2
Defeat 500 enemies
Defeat 2000 enemies
Complete a stage with a maximum combo of 30 or more
Reach submission level 10
Win a survival match that last 9 minutes or more
Unlock all Specials at the same time
Unlock 100 cloth pieces on a single character
Unlock 200 cloth pieces on a single character
Get fully restrained 25 times
Be captured 20 times...
Cum over 200 times on a single character