Build Your Zombie Horde

So you tap to summon zombies. That's the core of it. Each tap pops a shambling undead soldier onto the battlefield, and they start marching toward whatever enemy is closest. Early on, you're just flooding the field with grunts against a few skeletons or bandits. The first area is called "Graveyard Shift" and it's basically a tutorial that doesn't tell you much -- you learn by losing a few times. The loop is simple: summon, watch your swarm clash, collect green resource orbs from fallen enemies, then spend those orbs in the upgrade menu between waves. Upgrades are split into three trees: Horde (makes zombies tougher or faster), Plague (adds poison damage or infection spread), and Command (unlocks special abilities like a big explosive corpse or a speed boost). You can't max everything in one run, so you have to pick a focus. Later levels throw in archers who fire from behind shields, or mages who cast area-of-effect fire spells that wipe out a cluster of your zombies if you don't have enough numbers. That's when you start needing to think about placement -- not where zombies go, but when you summon them. There's a mana bar that refills slowly, so you can't just spam endlessly. You have to decide between a steady trickle or saving for a burst of ten zombies at once, which is great for rushing a boss. Bosses show up every five levels, like the "Giant Rat King" which summons smaller rats, or "The Necromancer" who turns your own zombies against you. The satisfying moment is when you've built a high-level Plague army and watch green mist spread through enemy ranks, chaining damage. Or when you time a Command ability like "Corpse Explosion" right as a boss starts its big attack. The difficulty ramps up by adding enemy types and reducing mana regen, so you can't just rely on the same strategy every time. There's also a "Hard Mode" toggle for each area that gives better loot but cuts your mana bar in half. The camera controls feel clunky at first -- you have to hold and drag, and sometimes you accidentally summon a zombie instead. Zooming helps see the whole field, but you'll mostly keep it zoomed out. The pause button on PC is handy for planning, but on mobile there's no pause during waves, so you have to think fast. It's not a deep strategy game, but it's got enough layers to keep you tweaking your approach for a few hours. The upgrade system doesn't reset between runs, so you keep progress, which is nice because failing a level doesn't feel like a total waste.