YGOWB
Create custom Yu-Gi-Oh cards and actually duel with them
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YGOWB is a free browser world builder and simulator for custom Yu-Gi-Oh cards. Define supported effects, build decks and actually duel with your creations online or against the computer. Each World has its own card pool, banlist and publishing rules. Classic 2005-era rules: no Synchro, Xyz, Pendulum or Link. Account required. Unofficial fan project with optional AI assistance for art and effects.
PH · launched Sep 20, 2026 · 2 upvotes (top 26%) · 2 views
Niche: browser-based video games · 380 launches, 21 in the last 7 days ▼ -28% · Explore this niche →
Category and tags
- Media & entertainment
- Content generation
- B2C
- Not AI
- Commercial product
- Card Games
- Free Games
Visit website ↗ Source listing ↗
More like this: all 380 launches in browser-based video games →
Could you build this?
Partial While card creation and deck building are straightforward, building a faithful card battle simulator with deterministic turn/phase logic and rule arbitration is complex, though classic-era rules simplify it.
What it would actually take: The architecture requires a custom rule engine and state machine (e.g. TypeScript or Python) handling priority, chain resolution, and damage calculation, coupled with WebSockets for multiplayer synchronization. The hard part is building an extensible effect parser/interpreter that maps custom card text to programmatic trigger-condition-action logic without desyncing game state. It requires deep knowledge of TCG game loop engineering and state machine validation.
Competitors
Other products that read as similar to this one : 82 launches clear the similarity bar, closest 8 shown.
Attention rank: #24 of 83 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 257 days after the earliest competitor.
- YuScan · ph · 2026-11-03 · 2 upvotes · similarity 0.43
- Dress the Duel Wiki · ph · 2026-11-02 · 1 upvotes · similarity 0.42
- TarneebGo · ph · 2026-11-08 · 1 upvotes · similarity 0.40
- TCG Jerk · ph · 2026-10-13 · 1 upvotes · similarity 0.39
- Duo Cards: Crazy 8s & Mau Mau · ph · 2026-10-11 · 1 upvotes · similarity 0.38
- PokerClub · ph · 2026-10-06 · 1 upvotes · similarity 0.38
- FNF YA! · ph · 2026-10-09 · 1 upvotes · similarity 0.37
- GHDraw · ph · 2026-10-13 · 1 upvotes · similarity 0.37
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