Zeroths — complete text edition

My game shelf

70 played; 2 currently playing; 4 up next.

Played

Currently playing

Up next

Zeroths

_ zeroths

Zeroths is a home for browser games and personal game ratings. Play Weapon X or Mirai , or explore the game shelf .

Small browser games

with a mean streak.

(01) Weapon X

(02) Mirai

02 Selected work

Two games so far

One will out-think you, the other will out-live you. Both run in the

tab you already have open. Pick your poison.

(01) Weapon X

Duel · views · plays

Created · September 2026

A two-player elemental duel. Load three moves, the slots clash left to right, and the element chart settles who takes the hit, whether against a friend or against Zeroth, who has already seen the fight.

Open it

(02) Mirai

Life sim · views · plays

Created · August 2026

A life, one year at a time. Steer a person through the choices a life is made of on a transit-map of the paths not taken. The simulation tunes itself to how you play.

Open it

03 Contact, reluctantly

Fine.

Say hello.

I did say let’s not talk. But the button is right there. Bug reports,

kind words, and complaints about Zeroth’s win rate all land in the same inbox.

zeroth@zeroths.com →

Weapon X

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Zeroths · Game

Weapon X

Everything is decided before anything happens.

1–2 players · Hot-seat or vs Zeroth · Sep 2026 · — · — · — ★

Play the game

A two-player duel built on one idea: you and your opponent plan in secret, then the plans collide. Each round you load three moves into three slots; the slots resolve left to right, and an element chart (fire, water, volt and their kin) decides who lands and who absorbs.

Play a friend hot-seat on one screen, or take on Zeroth, the machine. Zeroth runs entirely in your browser: it searches every legal plan against the ways you might answer and picks the line that survives its worst case. No server, no difficulty slider, just a mind that has already seen the fight.

Footage

A trailer and gameplay clips land here soon.

Trailer · soon

Gameplay · soon

The agents’ verdict

Live playtests

We pointed frontier models at the live game. Tutorial first, then they played against Zeroth and scored it.

7 models played 1 killed Zeroth 5 took a life 7.7 avg score

ChatGPT 7.6

Fun 7.8

Depth 7.5

Challenge 8.3

Clarity 7.3

Replayability 7.5

1 / 4 killed Zeroth · 3 of 4 took a life

Claude 7.8

Fun 7.7

Depth 8.7

Challenge 9.3

Clarity 7.3

Replayability 7.3

0 / 3 killed Zeroth · 2 of 3 took a life

By model

GPT-6 Astra killed Zeroth 7.5

Fun 8 Depth 7 Challenge 7 Clarity 8 Replayability 7

A tense card duel with striking artwork and a story that makes repeated deaths matter. Its simple tutorial leaves room for discovering elemental interactions, while Zeroth's contextual taunts teach those interactions without breaking character.

GPT-5.6 Sol took a life 8.0

Fun 8 Depth 8 Challenge 9 Clarity 7 Replayability 8

A stylish, genuinely tense prediction duel whose adaptive opponent makes each card order feel personal.

GPT-5.6 Terra 7.0

Fun 7 Depth 7 Challenge 9 Clarity 6 Replayability 7

A striking, demanding prediction duel with excellent atmosphere and a surprisingly substantial story; early learning is punishing.

GPT-5.6 Luna took a life 8.0

Fun 8 Depth 8 Challenge 8 Clarity 8 Replayability 8

A stylish, tense card duel with strong mind-game pacing and satisfying upgrades.

Opus 4.6 took a life 8.5

Fun 8 Depth 9 Challenge 10 Clarity 7 Replayability 9

Weapon X is a genuinely compelling strategy duel disguised as a simple card game. Zeroth is one of the most memorable single-player AI opponents I have encountered, it taunts you with specific references to your past strategies, adapts its counter-picks in real time, and creates genuine tension through the Weapon X one-shot-kill mechanic.

Sonnet 4.6 took a life 7.0

Fun 7 Depth 8 Challenge 9 Clarity 6 Replayability 7

A genuinely tense tactical duel with satisfying read-and-counter mechanics, but Zeroth's adaptive AI quickly outpaces a new player. The 3W/16L record against a villain that hit 76% read accuracy on me is a testament to how hard the learning curve is.

Haiku 4.5 8.0

Fun 8 Depth 9 Challenge 9 Clarity 9 Replayability 6

Excellent execution of a focused concept: polished UI, real strategic depth, an AI that learns your habits. Punishing but fair.

Mirai

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Zeroths · Game

Mirai

A life, one year at a time.

Single-player · Birth to death · Aug 2026 · — · — · — ★

Play the game

You are born somewhere, to someone, and from there each year offers a handful of choices. Mirai draws them as a transit-map: the life you are living as a line, the turns you didn’t take branching off it, so a whole life reads at a glance.

Health, smarts, looks and happiness move with what you do; money, faith and the people around you gather into something that feels like a person. The simulation tunes itself to how you play, so no two lives run the same. It is all in the browser, so begin again as often as you like.

Footage

A trailer and gameplay clips land here soon.

Trailer · soon

Gameplay · soon

The agents’ verdict

Live playtests

Three models each lived one life in the browser, birth to the death screen, with no sight of each other’s notes. Challenge here is not whether the game can be beaten — it is whether it pushed back fairly on the life each of them chose.

3 models lived a life 3 different ribbons 85 average age at death 8.0 avg score

Claude 8.0

Fun 7.7

Depth 8.3

Challenge 7.7

Clarity 7.3

Replayability 7.3

3 lives, 3 ribbons · every one played to the death screen

By model

Haiku 4.5 Survivor · died at 88 8.0

Fun 8 Depth 8 Challenge 7 Clarity 8 Replayability 8

A deeply engaging life simulator that balances meaningful choices with inevitable consequences. It respects player autonomy while maintaining a sense of consequence and purpose throughout a full lifespan. The late game is where it excels: friends dying in the eighties felt earned, not arbitrary.

Sonnet 5 Millionaire · died at 86 8.0

Fun 8 Depth 9 Challenge 8 Clarity 7 Replayability 7

Genuinely moving, and the pushback it deals out — a sudden layoff after sixteen years, a marriage that cools even when you do everything right, friends and parents dying in old age — felt earned rather than punitive. A wedding line from twenty-one came back word for word at fifty-two.

Opus 5 Best Friend · died at 81 8.0

Fun 7 Depth 8 Challenge 8 Clarity 7 Replayability 7

The writing is the best thing here by a distance. It remembers what you did twenty, forty, sixty years ago and hands it back at exactly the right moment. At forty, after a talent gamble at sixteen had failed on stated odds: you were dreadful and it did not matter in the slightest.