Here is the full list of all 20 Tower Tactics Arena achievements.
Defeat wave 25 with the Golden Rookie.
Defeat wave 25 with the Golden Vanguard.
Defeat wave 25 with the Golden Titan.
Defeat wave 25 with the Golden Shieldbreaker.
Defeat wave 25 with the Golden Rookie in The Pit on Ascension 5.
Defeat wave 25 with the Golden Vanguard in The Pit on Ascension 5.
Defeat wave 25 with the Golden Titan in The Pit on Ascension 5.
Defeat wave 25 with the Golden Shieldbreaker in The Pit on Ascension 5.
Defeat wave 25 with the Golden Rookie on The Arena on Ascension 5.
Defeat wave 25 with the Golden Vanguard on The Arena on Ascension 5.
Defeat wave 25 with the Golden Titan on The Arena on Ascension 5.
Defeat wave 25 with the Golden Shieldbreaker on The Arena on Ascension 5.
Defeat wave 25 with the Golden Rookie in Big Box on Ascension 5.
Defeat wave 25 with the Golden Vanguard in Big Box on Ascension 5.
Defeat wave 25 with the Golden Titan in Big Box on Ascension 5.
Defeat wave 25 with the Golden Shieldbreaker in Big Box on Ascension 5.
Defeat wave 25 with the Golden Warper.
Defeat wave 25 with the Golden Warper in The Pit on Ascension 5.
Defeat wave 25 with the Golden Warper on The Arena on Ascension 5.
Defeat wave 25 with the Golden Warper in Big Box on Ascension 5.