- Estimated achievement difficulty: 3/10 [Achievement Difficulty Rating]
- Offline: 16 [1000

- Online: 0
- Approximate amount of time to 1000

- Minimum number of playthroughs needed: ~5 successful runs theoretically, but plan on a bit more
- Missable achievements: None [rogue gameplay]
- Does difficulty affect achievements: No difficulty option
- Unobtainable/glitched achievements: None
- DLC: Title Update
- Difficulty: 2/10
- Time to 1000
: 20 minutes [embedded into the base game completion]
- Unobtainable: No
Welcome to Space Mercenary Defense Force, eastasiasoft's forray into the Vampire Survivors-like auto battler genre. This game pits you as a fighter ship in space above earth, tasked with defending against 20 minutes of non-stop alien enemies. This is a straight auto-battler, so you'll have to collect drops from enemies to level up, pick new weapons or upgrade existing ones as you level, and try to get strong enough to survive all 20 minutes and the multiple boss fights along the way. Between runs, you can purchase upgrades that apply to all ships, and you can also purchase new ships with differing stats. Lastly, you can apply modifiers that make the game more challenging to increase your score multiplier. It's got a ton of similarities to other auto battlers with roguelite elements, but is a generally quicker completion. Let's get started.
Abbreviated Walkthrough:
This is a roguelite, so feel free to just jump right in and ignore this roadmap entirely, but for those interested, I will go through the process I feel is most efficient to unlock achievements.
The two longest achievements are Astris Annihilator (60G) and Hoarder (60G) for getting 10,000 kills with the starting ship and amassing 20,000 credits, respectively. I recommend getting both out of the way right at the beginning. Do run after run with the starting ship, the Astris, and don't spend any money. Get used to enemies and their patterns, and get a feel for what weapons you llike and don't like. Here is my preferences:
Top tier modules
- Micro missile array (amazing; go for it every time)
- Sentry turret (of any sort - laser, gunner, or sprinkler)
- Any explosive (mortars, rockets, mines)
- Anything defensive
- Anything melee
- Ray gun
- Ice cream launcher
- Harpoon
Even without spending money on upgrades or ships, you'll notice yourself getting way better each run, with more kills and destroying enemies and bosses faster. I personally unlocked both Astris Annihilator (60G) and Hoarder (60G) after my fourth full run, but once you unlock Hoarder (60G) you can then start buying upgrades for your ship, and once you unlock Astris Annihilator (60G) as well, you can feel free to buy a new ship. I went with the Mantis because it started with more health and had a massive fire rate. To offset the lower damage stat, I bought the damage upgrades for my ship.
Once you have both of those achievement, the 20,000 credits can easily be used to upgrade your ship and unlock Maxxed Out (60G) and Full Arsenal (60G) with money to spare. Fully upgrade damage in the first tier on the left, and then spend credits on one upgrade per tier across all other tiers to unlock Full Arsenal (60G). Spend your remaining money on a new ship since you need to for That New Ship Smell (60G) anyway.
With your upgrades purchased and a new ship, it's time to do successive runs with modifiers to unlock achievements. You should definitely have beaten the game by now, but if not, it will be a piece of cake with all the upgrades and a new ship. Beat the game for the first time to unlock Aries (60G), then enable that modifier and beat the game again to unlock Taurus (60G), and then beat the game a third time with both Aries and Taurus enabled to unlock Gemini (60G) and, unavoidably, Overachiever (60G). All of the "Destroyer" achievements in the title update will also unlock during this run if they haven't already.
While doing those modifier runs, keep an eye out for encounters on your minimap (see Encounters Encountered (60G)) and for gambing drops (coin tosses, slot machines, and wheel spins) to get any RNG achievements you're still missing. When you're done with everything else, waste your money on a new skin for your ship to wrap up this completion.
This title update adds five tiered achievements for destroying up to 1200 enemies in a single run. I personally did this on my very first run of the game, but it is essentially unavoidable while going for Gemini (60G) and Overachiever (60G), and therefore this update's completion will be built into naturally progression of the base game.
Conclusion:
This was actually a pretty fun and solid auto battler from eastasiasoft. There is a huge variety of weapon modules to put on your ship, lots of ships to choose from, and a decent amount of upgrades to buy. It's a shame there's only one "level," but having bosses thrown in plus other random events definitely made each run enjoyable. There's a bit of grinding to do, but like all roguelite auto battlers, the gameplay holds it together and keeps it fun. Congrats on the completion!
[XBA would like to thank Necrophage33 for the DLC Roadmap]