SEED A roguelike by Lyx · v2.0 · The World Forge

Type anything.
It becomes a roguelike.

Type crypto winter, German bureaucracy, or a haunted stock market. The Forge turns it into a deterministic world with its own Law, three mechanical Contracts, routes, Sigils, and Adversary.

The Reliquary remembers: your preferred elements, Reactions, routes, and deck-shaping habits become part of the next descent — and part of what the Adversary learns to stop.

Free · no signup · saves in your browser

⚔ Begin a Campaign Quick play → How it plays
forging “crypto winter”…
Confluence
0 × 0 = 0
01 · THE FORGE

Every prompt becomes a different game plan.

SEED 2.0 does more than rename cards. A versioned World Spec selects a global Law, dominant elements, three trade-off Contracts, encounter routes, a final rule boss, and a balanced Sigil recipe. AI can write flavor; reviewed mechanics and headless simulations keep authority over the game.

you type: “crypto winter” → Law of Scarcity · Hoard Contract · Frozen Sequence +6 Mult · The Tax …
02 · THE LOOP

Forge. Choose. Shape. Survive.

Short worlds. Permanent deck decisions. A road that remembers where you went.

1

Choose

Read the world's Law and select one of three Contracts, each with a Keystone and a cost.

2

React

Build hands of element tiles into Reactions. Every Sigil shows whether it fires before you commit.

3

Shape

Spend scarce money on Sigils, Boons, or permanent changes to individual tiles in your deck.

4

Route

Choose the next encounter, survive rule bosses, then share a validated ghost replay.

03 · THE ENGINE

Reviewed mechanics. World-sized combinations.

The Forge composes flat power, conditions, Reaction bonuses, exact hand sizes, held-money engines, value patterns, charged tiles, scaling, and economy. Every number is clamped and every release is checked against deterministic balance cohorts.

×Mult

Multiply your multiplier. The exponential engine — rare and loud.

+Chips / +Mult

Flat, reliable boosts to your score before the multipliers hit.

Conditional

Big bonuses when your play meets a condition — elements, tile count.

Retrigger

Score the same tiles twice. Then build a deck that does it four times.

Per-Element

Stack mult for every tile of a type. Go wide, go infinite.

Scaling / Economy

Sigils that grow every round, and money that buys the win.

Ore Spark Bloom Void Aether
04 · WHAT'S INSIDE

Small download. No download, actually.

It's a web page. It runs the moment you click play.

Free

One click, no signup

Runs in your browser, saves locally. Nothing to install, nothing to buy.

The hook

Mechanical worlds

Every seed-and-theme pair becomes a versioned World Spec with Contracts, Laws, routes, and bosses.

Social

Ghost duels

Challenge links carry the exact world, Contract, forged deck, result, and a validated round-by-round ghost.

Depth

Shape the Seed

Temper, transmute, refine, echo, and infuse individual tiles permanently within a run.

Craft

Synthesized sound

Sound, music, and effects are generated live in-browser, with no prerecorded audio files.

Flex

Run cards

Every run renders a shareable image — your score, your deck, and a verdict.

05 · BY LYX

Built by the studio that builds the boring layer.

Lyx is an independent studio building the infrastructure beneath AI tools — and, occasionally, games about compounding systems. SEED is one of them.

Compound →
The idle game that looks like a day job. Run a one-person AI agency; watch revenue compound.
MCP Verdict →
The independent verdict on MCP servers — signal, not noise.
Lyx Exocortex →
A user-owned memory layer any AI can query through one MCP endpoint.
06 · WHAT'S NEW

Every update ships something worth typing home about.

v2.0 — The World Forge.

Themes now create mechanical World Specs: Laws, three trade-off Contracts, Keystones, persistent Tile Workshop changes, branching encounters, and rule bosses. The Reliquary learns your elements, Reactions, routes, and shaping style; Doctrines trade power for pressure. Added deterministic balance cohorts, Daily Forges, local run history, replay tokens, live ghost progress, and exact 2.0 share links.

v1.1 — Bring your own AI.

Plug in your own key (Claude, OpenAI, Gemini, or Grok) via “⚙ your AI” and a live model forges your deck and voices the campaign's narrator — same hard caps, so it stays fair. AI-forged decks travel inside share and duel links, so “same seed, same run” now holds for every deck, human- or machine-forged. Also new: the Vein reaction (four numbers in a row), three bosses (the Toll, the Gale, the Eclipse), the Kindling boon for scaling builds, your personal best on the start screen, and a full keyboard & screen-reader pass.

v1.0 — Duels, deeper saga, total clarity.

Seed Duels: challenge anyone with a link — same exact run, best result wins. The Reliquary gains Embers (dying makes you permanently stronger) and Relics (carry a sigil between descents). Every sigil now shows its math and whether it fires on your selection, plus a full Reactions reference (R), a new Amalgam reaction, and a calmer, unified board on every screen size.

v0.3 — The Reliquary.

A personalized campaign: the Forge transmutes what you're chasing and what stands in your way into a saga, makes your nemesis the final boss, and remembers every descent on the Shard Wall.

v0.2 — The Forge & the feel.

Type-a-theme deck generation (local + AI), step-by-step animated scoring with escalating audio, a generative lo-fi soundtrack, particle VFX, and shareable run cards.

v0.1 — Core loop.

Element tiles, Reactions, sigils, the shop, escalating rounds, endless mode, and fully deterministic seeded runs.

Type a theme. Forge a run. Share the seed.

Free, runs in your browser, saves as you go.

Play SEED →