Here is the full list of all 24 Idle Monster TD: Evolved achievements.
Unlock 25 unique monsters.
Reach 1 day of in-game play time.
Defeat 1,000 bosses.
Participate in 1 PvP Tournament.
Pass wave 100.
Evolve monsters 5 times.
Unlock 10 unique monsters.
Defeat 10,000 enemies.
Prestige 5 times.
Pass wave 1000.
Pass wave 2500.
Prestige 50 times.
Prestige 250 times.
Unlock 40 unique monsters.
Defeat 1,000,000 enemies.
Defeat 10,000,000 enemies.
Defeat 10,000 bosses.
Defeat 100,000 bosses.
Reach 10 days of in-game play time.
Reach 25 days of in-game play time.
Participate in 5 PvP Tournaments.
Participate in 12 PvP Tournaments.
Evolve monsters 35 times.
Evolve monsters 100 times.