Here is the full list of all 52 Sunrider: Liberation Day achievements.
Put all debufs (except Disable) on the same enemy.
Survive an attack with less than 10hp remaining.
Have a player unit get killed at 0 to -9 HP.
Kill Cosette.
Complete a battle while ignoring one of your Ryders.
Have the Paladin get destroyed with Draw Fire ability active.
Find all the endings in REturn.
Find Icari's happy ending.
Find Sola's normal ending.
Find Sola's alternate ending.
Find Sola's worst ending.
Find Sola's happy ending.
Find Ava's normal ending.
Find Ava's happy ending.
Find Asaga's normal ending.
Find Asaga's alternate ending.
Find Asaga's happy ending.
Complete the game with the wishall still in your inventory.
Leave the starship grave yard alone.
Have both the Phoenix and the Paladin end their turns next to each other every turn for an entire battle
Hit 8 units at once.
Scavage the starship grave yard to discover the Falcon.
Have 5 player ships or more get hit by an AoE rocket.
Kill a PACT support with melee.
Contract your first merc.
Kill 10 units in the same turn.
Destroy a capital ship with an assault weapon.
Use vanguard for the fist time.
Lose a mercenary unit.
Have a non-mercenary player unit get destroyed for the first time.
Restore the Havoc.
Finish the prologue.
Capture Cosette
Kill 1000 enemies
Get 10 stacks of 'Awakening' on Asaga.
evive the Phoenix twice in the same battle.
Repair 50'000 hp in battle with the Liberty.
Beat the game on Captain difficulty or higher.
Beat the game on Admiral difficulty or higher.
Beat the game on Space Whale difficulty. Yeah, good luck with that.
Win a battle with only the Sunrider left alive.
Complete the game without buying anything at the store.
Complete the game without ever buying new upgrades.
Use short range warp 3 times in the same turn.
Kill 2 PACT support units in the same turn with Sola.
Save up to 50'000 credits.
Buy at least 20 different things in the store (including merc contracts).
Put 5 different buffs on the same friendly unit.
Have Bianca use Restore on an allied unit afflicted by all possible debuffs.
Perform exactly 21 attacks with Black Jack in a battle.
Kill 30 units with melee.