Here is the full list of all 47 APOX achievements.
Player is in the Hall Of Fame
Award for reaching the top ten in the leaderboard
Award for reaching the top 100 in the leaderboard
Award for reaching the top 1000 in the leaderboard
Award for player getting a lot of ranking very quickly
Award for winning 10 games in a row
Player Of The Year
Player Of The Month
Player Of The Week
Player gets an award for telling his friend about the game
Veteran player gets this for playing games with newcomers
1v1 Tournament Winner
2v2 Tournament Winner
3v3 Tournament Winner
4v4 Tournament Winner
Clan Tournament Winner
1v1 Clan Tournament Winner
2v2 Clan Tournament Winner
3v3 Clan Tournament Winner
4v4 Clan Tournament Winner
FFA is short for free-for-all. FFA is a game mode where there are three or more teams (normal games have exactly two teams)
FFA team means that there are three or more teams, and each team has more than one player in it. (in normal FFA games, each team has one player)
Winner of tournament not listed above
Player wins a large FFA game
Winning game without losing a unit
Player is losing really badly but somehow wins
Player plays a game against many bots (CPU players) and still wins
Veteran player protects a noob from a rush
Player defeats another player very, very quickly
Player wins a game with the Super Gun. The player must destroy 3+ bases, supply the metal and fire the Super Gun too
Player gets top score in a game with many players (and doesn't win any other award for the game)
Rampage
Successfully built a Super Tank
Successfully built a Super Launcher
Successfully built a Super Gun
Knife Weapon Level 3
Rifle Level 3
Flamer Level 3
Heavy Machine Gun Level 3
RPG Level 3
Mortar Level 3
Machine Gun Car Level 3
Flame Car Level 3
Tank Truck Level 3
Artillery Truck Level 3
Anti-Tank Level 3
Sniper Level 3