An AI survivors game maker for hordes, builds and level-ups

A survivors-like is easy to describe and hard to balance: you only steer, your weapons attack on their own, and the screen fills with enemies until your build holds or breaks. Tyrbo plans that loop with you, builds it from tested parts and lets you tune it on your phone. Describe your hero and the horde, and the first draft follows.

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Survivors game concept art in the 16-bit pixel look — Looks a survivors game can start from. Pick one, mix two, or name your own.

Survivors game concept art in the dark pixel look — Looks a survivors game can start from. Pick one, mix two, or name your own.

Movement is the only input, so it has to feel right

In this genre the player's whole job is positioning. One thumb steers and everything else is automatic, so the controls carry the game. Tyrbo builds the hero on its tested movement part, so steering, bumping into enemies and staying inside the field already behave before anything else is added. The field itself comes from the arena map recipe: open ground with room to kite, plus obstacles that funnel the horde.

Your questions are about space. Is the arena a fixed ring, or does it stretch on as you walk? Do pillars and trees block enemies, or is it a bare field? Does a run last a long stretch or a short burst? Each answer changes how the horde moves and how long a good build takes to come together.

Weapons, level-ups and the build

People replay for the build. Enemies drop experience gems, and each level-up offers a pick of three: a new weapon, an upgrade to one you hold, or a passive such as speed or pickup range. Synergy is the real design work: a weapon that goes wild next to a certain passive, an evolved form that appears only once both are maxed.

With Tyrbo you describe weapons in plain words (orbiting daggers, a frost aura, chain lightning that hops between targets) and the AI writes each one as code owned by your game, with damage, cooldown, area and projectile count exposed as numbers you can change. Ask for a draft of the upgrade paths and it proposes one you can edit before anything is built.

The horde curve: spawns, elites and the final stretch

A survivors game is a pacing problem. Too few enemies and the build never gets tested; too many too early and the run ends before the fun starts. The usual shape is a quiet opening, waves that grow and change type as the clock runs, elites that drop chests, and a closing stretch meant to overwhelm.

Tyrbo plans the spawn table with you: which enemies, when they arrive, how fast they ramp. Then it can write helpers into the game for tuning, such as a slider for spawn rate, a button that skips ahead to the late waves, invincibility so you can watch the end game, and a spawn-an-elite cheat. With those you feel a change in one run instead of ten.

Make a survivors game without coding, smooth on a phone

A crowded screen is where weak builds fall over, and a survivors game that stutters on a mid-range phone is no game at all. Every Tyrbo game is tested on low-end Android before it ships, alongside a soft-lock check, wired ads and purchases, and live leaderboards for your best runs.

The art starts from curated packs (top-down dungeon and graveyard sprites, a 3D dungeon kit) plus whatever the AI generates to fill gaps, in a look you pick: pixel art, spooky cartoon or toy-like 3D. For the power-fantasy angle of the same family, see the bullet heaven game maker.

Start a survivors game with one sentence

A tiny knight in a haunted graveyard, auto-swinging a lantern while skeleton hordes close in
A cat wizard surviving a mouse invasion in a kitchen, with orbiting spoons and a cheese blast
A drone in a neon grid whose lasers fire on their own, picking a new upgrade every level
A mushroom forager holding off swarms of beetles at dusk, with spore clouds that grow each level

From a sentence to your phone

1
Describe it
One sentence is enough. Say what you tap, what you dodge, what you win.
2
Answer a few questions
Each comes with our best guess picked, so most of the time you just tap Continue.
3
See the plan
A title, a pitch, every part of the game, and concept art, before anything is built.
4
Play it today
Scan the code and it runs on your phone. Change it by talking to it.

Built to ship, not just to prototype

Every game leaves the pipeline with all of this checked, not hoped for.

No soft-locks
Runs on low-end Android
Ads and purchases wired
Leaderboards live
A signed build you own

Questions people ask

What is a survivors-like game?

A top-down action game where you steer one character and its weapons attack automatically. Enemies arrive in growing waves, you collect experience to level up, and each level-up lets you choose a new weapon or an upgrade. Runs are short, and the fun is the build you assemble along the way.

Can I make a survivors game without coding?

Yes. Describe the hero, the enemies and a few weapons in a sentence or two, and Tyrbo turns that into a plan you can read before it builds. Every later change, from a new weapon to a slower horde, is a request in plain words.

Will it run smoothly with a big horde on screen?

Performance on low-end Android is one of the checks each game passes before release, so a packed screen is tested rather than assumed. If a late wave feels heavy, ask Tyrbo to cap enemy counts or fold small enemies into bigger ones.

Can I add upgrades that carry over between runs?

Yes. A shop of permanent upgrades bought with coins from each run, heroes to unlock, new maps to reach: describe what carries over and the AI builds it, with a currency display and progress kept between sessions.

Who owns the survivors game I make?

You do, with full ownership and commercial rights. The signed Android build is yours to publish, and the code your game is made of belongs to that game rather than being locked inside a shared template.

Your game is one sentence away.