Here is the full list of all 10 Undress Tournament achievements.
Awarded for spinning the wheel 25 times.
Awarded for fully completing the first region.
Awarded for completing Chapter 4 of the Story.
Awarded for completing Chapter 3 of the Story.
Awarded for playing 100 matches.
Awarded for winning 50 Matches.
Awarded for collecting 10 girl cards.
Awarded for buying the pass to enter the vip club.
Awarded for completing Chapter 2 of the Story.
Awarded for completing Chapter 1 of the Story.