Undead Siege

The Officer Academy is locked, and growth is glacial for free-to-play players. It's quite tough unless you get the unique skills for Shotgunners and Machine Gunners with Legend Gems and Epic Gems through the Baptism. Also, if you don't carry over 5 Shields or 5 First Aid Kits from Stage 29, your healing won't keep up. I also unlocked the Operation Lab and leveled up the Armory to Level 30 or higher with Epic or better rarity. For myself, I've strictly selected only Attack and Damage stats. With this setup, I barely managed to clear it using continues. Ultimately, I had 2 First Aid Kits (5 uses) and 1 Shield (5 uses), and healing was still just barely enough.

Even without a high level, I was able to clear Gold Rush 19 after getting the Legend shotgun's attack boost. Carefully selecting gems is quite tough, but if you get lucky, you might be able to break through stages you couldn't clear before!

The luck element is so strong that this is just information from when I cleared it, rather than a strategy guide. Shield 5 carried over, and in the end, I had two Shield 5s, a Machine Gunner, a Shotgun, and Molotov 5. If you can't easily deal with the desert tanks along the way, you won't be able to deplete the boss's HP. Bringing soldiers with high single-target damage like Snipers might be a good idea. The Freeze Drone also provides quite a bit of firepower. This might be because I was level 55. In the end, I used continues to barely manage to defeat it. You need to have some healing items ready or you'll get wiped out, and without enough firepower, you can't even take down the desert tanks. It was quite a difficult stage.

For firepower, use Musketeer and Shotgun. Try to get the Musketeer to level 5 if possible. Musketeer has higher priority than Shotgun. Prioritize Musketeer for skills too. For debuffs, use the Freeze Drone and Tank, and any other soldiers will be fine. Musketeer level 46, Shotgun level 49, both blessings at 95%, gems are mostly pink (selected for firepower as much as possible). However, if you fail the skill gacha or soldier gacha, you'll lose to the boss.

I'll do my best at 22!

I'm a free-to-play player. I can't beat Stage 21! What should I do?

Snipers can deal significant damage to treasure chests and trucks. It depends on the skill and soldier gacha pulls, though. Also, I think treasure chests and trucks don't take damage, so healing might not be necessary.

I saw it on TimeQuest for a while and thought it was a game with a lot of ads, so I ignored it. But when I tried it, there weren't that many ads and it's fun! However, looking at everyone's comments, it seems to get harder and harder. I wonder if I can enjoy it casually for just a little longer?

Usable soldiers as of clearing Stage 28 Tier SS Machine Gunner, Shotgun Tier S Molotov, Prism Drone Others are all pretty much the same. Choose based on the advantageous attribute for each stage.

I'm playing right now, but I can't win at all lol Is everyone spending money (paying)?