The Last Mission

I like spaceship games, so I gave it a shot. Some bugs/issues:

 - The achievement unlock system definitely provides progression, but there's a huge gap between maybe getting a 100 credit item every round and maybe getting a 600 credit item every round. Also, the achievements and what they unlock should be visible with a button placed somewhere prominent on the main menu.

 - Energy weapons, even with the buff from their dedicated ship, seem useless. You want PD, autocannons on the mediums, railguns on the larges. That seems like the only worthwhile fit. 

 - Related, missiles seem useless too. They appear to explode before hitting the target, doing very little damage. Enemy missiles are lethal, though.

- If you lose a ship while still getting started, it's usually just game over. Getting to keep the weapons/equipment of a dead ship, and maybe sharing its EXP with your other ships at a positive-sum ratio, might make that less the case.

 - In general, you've got one ship taking all the damage unless enemies arbitrarily decide to focus down something else. Difficulty is low enough that you can afford to stick an armor+repair on everything else, but putting all defense on your middle ship and clustering everything else just slightly back from it is meta. Positioning should be a more major part of the game - maybe enemies should attack the weakest target in range rather than the first one they see.

 - Related, friendly ship AI is all over the place. I've had a single ship shooting at three different full-health enemies at the same time.

 - Am I missing something, or are crit buffs useless? 5% critical damage on a 5% critical chance is a 1.0025 multiplier to your total damage, if that 5% is applied to base damage. Still lackluster if it's applied to crit damage directly and it's 400% base. A 10% fire rate boost, assuming you spend a quarter of the time reloading, is a 1.075 multiplier to your total damage, which is thirty times better. Likewise, 10% faster reloads are three times worse than that fire rate buff.

 - One try, I started up the game, beat wave 1, and then wave 2 was a big ship that kited me to death with no opportunity to shoot back. No opportunity to get a weapon with longer range, nor any warning to upgrade range beforehand.

Beyond that, some more ambitious stuff:

 - Autobattlers need cool battle effects, so dedicating some effort to tuning the VFX and crunch of each weapon so that they feel different could be worthwhile.

- Variety is a major gap, both in player ships and enemies. Having different ship classes that do different things could help. As it is, you're just building a better stat brick.

 - Enemy wave variation in particular could use a look, for replayability's sake.  Maybe have a map or something, and enemies in different 'areas' have different doctrines. One round, the player chooses between fighting the enemies with lots of fighters and the enemies with long-ranged guns, and then, a few rounds later, has to choose between a subdivision of the fighter enemies where fighters drop close-ranged bombs, or one where they upgrade into fewer but stronger gunships with rocket pods.

 - Likewise, interplay. Right now, you have three ships that all work kind of the same. Upgrades are all mostly independent from each other, and amount to making some number higher. The core gameplay of this genre is planning out complex builds, since there's no direct player control or anything like that, so having upgrade X have some major impact on upgrades Y and Z that the player plans around is vital.

As an example of variety, strategy, and interplay, suppose the first upgrade branch let you choose between "destroyer" and "command ship". Command ships have one less medium turret, but allow the player to set 'orders', like telling friendly ships with low health to retreat behind the nearest friendly (if unobstructed) until they recover, or to always target the lowest health/fastest/slowest/deadliest enemy with XYZ weapon type.

Glad to see this updated!

Some notes, mainly balance-
Weapon upgrading is clunky- upgraded weapons and stock weapons are both aggregated into my 4x laser beams and I can't select if I get my cool laser beam or boring laser beam.

Missiles are very strong against non-fighter ships, Having two of them makes any of the larger ships a non-issue

Level 3 upgrade feels weaker in comparison to level 2 upgrade- a level 2 ship gets +1 medium slot, +2 smalls, and +2 passives. Large slot and two passives is not worth 2000 to me. Also couldn't get any large weapons until the Railgun unlocked.
Tanker start is much better than any of the other starts because it is a level 2 ship instead of a stock ship. 

Content unlocking is ambiguous- I occasionally get pop-ups for unlocking equipment without knowing what caused it

Repairing feels weak: 1 regen a second doesn't help much when most engagements take 30 seconds and I can get 100 armor immediately for a different grey passive.

The item/weapon selection in between waves is super clunky, I tried to swap weapons for the scout ship, so I had to delete my previous weapons, but even though the new was of the same category (laser beam, which matched the turret requirements), as soon as I selected the laser beam disappeared, and I was left without a weapon on my ship. Mind you this is the scout ship, which only has one weapon hardpoint. Also sometimes I could choose multiple rewards instead of just 1, not sure why?

-Items that  you can't equip vanish when you attempt to equip.
-Swapping out a utility does not remove its effect.
-Swapping an item adds modifiers (+5 damage/10% accuracy/etc) again.
-Selecting an enemy in its death animation creates an unclosable pop-up window
-Red squares do not go away on moving a ship
-Weapons on a ship rendering below a friendly ship render above that same friendly ship.
-Sufficient inventory upgrades make the cargo hold continue off the screen, making certain slots unselectable.
-Going back to the menu does not allow me to select endless again.

-Falcon on default loadout fails to clear the first wave, can't finish off the fighter.

-Kinetic/Explosive/Energy damage isn't explained. Longspear Railgun does 12 or 6 damage to hull instead of the listed 30 and kinetic damage seems to do less damage than the stat card would indicate.

Fun game!

the discord link is not working :(