Description
What happens when an incremental clicker meets a first-person shooter and every target is full of oil? ZOMBILLIONAIRE answers with millions of zombies, a long list of weapons to buy, and a goal stated right in the pitch: become a Zombie Oil Billionaire. It sits between an idler and an arena shooter, and that crossover is exactly what makes it hard to categorize.
| Genre | Incremental FPS, arena shooter |
| Perspective | First-person |
| Mode | Single-player |
| Core loop | Shoot zombies, sell loot, upgrade |
| Base defenses | Turrets, mortars, flamethrowers |
The Zombie Oil Economy in ZOMBILLIONAIRE
The setup is simple and a little absurd. Millions of zombies rose from the dead, they are full of oil, and you enlist to demolish them and take part in the emerging zombie oil industry. Every kill feeds the loop, because the loot zombies drop can be sold to get stronger. That sell-and-upgrade cycle is the engine of the whole game, and it is what puts ZOMBILLIONAIRE in the incremental camp rather than the pure shooter camp.
Money is the point, and shooting is how you earn it. Everything else in the game orbits that trade.
Players who love the classic number go up rhythm will recognize the pattern immediately: kill, collect, sell, upgrade, repeat. The idler tag on the store page hints that some progress may not demand constant attention, though how much automation exists is worth testing in the demo. Shooter fans should expect progression to matter as much as aim in a game labeled incremental.
Machine Guns, Planes, and the Upgrade Tree
Machine guns and planes are the two weapon types the pitch highlights, and the upgrade tree is promised as massive. It covers more weapons, more ammo, and stronger returns from selling loot. Early in the game you should expect basic firepower, and the long-term hook is how far the tree stretches before it runs out of surprises.
Three upgrade directions are worth tracking from the start:
- Ammo supply, because running dry in the middle of a swarm wastes the zombie oil you could be earning
- Weapon variety, since new guns and planes change how fast you clear a crowd
- Loot selling, which funds everything else on the tree
The tree is where incremental games live or die, and it is also where opinions split. Some players treasure a deep tree with room to plan, while others bounce off repetition once the numbers stop surprising them. How well the pacing holds up across long sessions is the question worth testing.
Turrets, Mortars, and Flamethrowers Around Your Base
Your base is not just a backdrop. The pitch lists turrets, mortars, and flamethrowers as base structures, which means you are expected to invest in defenses instead of relying only on the weapon in your hands. Turrets suit steady coverage, mortars suit clumps of zombies at range, and flamethrowers suit anything that gets close, so a mix usually beats stacking a single type.
Once mortars are in place, the screen starts to look like the spectacle the tags promise. Planes and heavy defenses turn a swarm into a light show.
Players who enjoy tower-defense logic will feel at home placing and upgrading these structures, since much of the satisfaction comes from watching a perimeter chew through a crowd while you shoot alongside it. The same hands-off appeal draws idle fans, who can treat the base as the part of the game that keeps earning while they plan the next purchase.
What Players Will Argue About in ZOMBILLIONAIRE
Genre blending always divides a crowd. Incremental fans sometimes find shooting too hands-on, and shooter fans sometimes find upgrade grinding too slow. ZOMBILLIONAIRE leans into that clash on purpose, and its retro, over-the-top tone suggests it knows it is not a serious military sim even though Military sits among its tags.
Spectacle is the second talking point. With millions of zombies promised, the obvious questions are whether a screen packed with enemies stays readable and whether planes and mortars add excitement or noise.
Practical questions come up too. Is ZOMBILLIONAIRE multiplayer? No, it is listed as single-player, with Steam achievements to chase. A separate demo exists, which is the safest way to find out which side of the divide you fall on before committing to the full game.
ZOMBILLIONAIRE is at its best as a loop of zombie oil, machine guns, and a base bristling with turrets, mortars, and flamethrowers, where every swarm doubles as a paycheck. If you enjoy numbers climbing while the screen fills with enemies, the demo is the quickest way to find out whether the oil keeps flowing.














