Here is the full list of all 52 Sunrider: Liberation Day achievements.
Kill 1000 enemies
Survive an attack with less than 10hp remaining.
Have a player unit get killed at 0 to -9 HP.
Have a non-mercenary player unit get destroyed for the first time.
Lose a mercenary unit.
Have 5 player ships or more get hit by an AoE rocket.
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.
Complete the game with the wishall still in your inventory.
Use short range warp 3 times in the same turn.
Kill a PACT support with melee.
Kill 2 PACT support units in the same turn with Sola.
Kill 10 units in the same turn.
Save up to 50'000 credits.
Use vanguard for the fist time.
Hit 8 units at once.
Contract your first merc.
Buy at least 20 different things in the store (including merc contracts).
Put all debufs (except Disable) on the same enemy.
Put 5 different buffs on the same friendly unit.
Have Bianca use Restore on an allied unit afflicted by all possible debuffs.
Complete a battle while ignoring one of your Ryders.
Have the Paladin get destroyed with Draw Fire ability active.
Perform exactly 21 attacks with Black Jack in a battle.
Destroy a capital ship with an assault weapon.
Kill 30 units with melee.
Have both the Phoenix and the Paladin end their turns next to each other every turn for an entire battle
Capture Cosette
Kill Cosette.
Finish the prologue.
Restore the Havoc.
Scavage the starship grave yard to discover the Falcon.
Leave the starship grave yard alone.
Find all the endings in REturn.
Find Asaga's alternate ending.
Find Asaga's happy ending.
Find Asaga's normal ending.
Find Ava's happy ending.
Find Ava's normal ending.
Find Sola's alternate ending.
Find Sola's happy ending.
Find Sola's normal ending.
Find Sola's worst ending.
Find Icari's happy ending.