Here is the full list of all 18 Mecho Wars: Desert Ashes trophies - there are 4 bronze, 4 silver, 9 gold and 1 platinum.
Obtain all trophies.
Destroy three units in one turn.
Destroy four units in one turn.
Destroy five units in one turn.
Complete the Winged Uprising episode.
Complete the Winged Assault episode.
Complete the Landian Strikeback episode.
Complete the Desert Ashes episode.
Defeat the AI in a skirmish.
Play and complete one online multiplayer game.
Win an online multiplayer game.
Win five online multiplayer games.
Level-Up in online multiplayer.
Complete one quest.
Complete five quests.
Purchase five perks.
Purchase ten perks.
Obtain 50000 gold from career quest rewards.