Dominate Yu-Gi-Oh! Forbidden Memories

Fusion Simulator is a Yu-Gi-Oh! Forbidden Memories fan-made website, built around three pillars:

Original Game Data

Browse all 722 cards with full stats, discover every duelist's complete drop table, check Guardian Stars, initial decks, and AI behavior faithfully reproduced from the PS1 classic. Whether you are looking up a specific card, planning your farming route, or studying duelist strategies, the full game database is at your fingertips.

Browser Games

Play fusion and merge simulations, campaign duels, challenge gauntlets, and Completion Mode directly in your browser. Face AI opponents that follow the original game logic or battle real players in online PvP. Everything runs client-side — no server, no emulator, no downloads needed.

Tools

Use the Rank Calculator to calculate your duel rank, the Win Rate Calculator to estimate your odds against the Final 6, and Card Overview to monitor your cards with interactive counters.

The site is a complete reference for Yu-Gi-Oh! Forbidden Memories original game data:

• 722 cards with full stats, types, stars, and fusion combinations
• 39 campaign duelists with their deck cards, drop tables, AI behavior
• Guardian Stars compatibility diagram and charts
• Initial Deck that explains the cards we can got at the start a new game

All mini-games here are built using this information

Several game modes are available, all running client-side in your browser:

• Completion Mode — Collect all 689 obtainable cards by farming duelists across multiple drop rates (x1, x5, x15, x30, x100), with independent progress tracking for each mode
• Challenge Campaigns — Sequential gauntlets of progressively harder duels with limited lives, speedrun timers, and custom challenge creation
• Free Duels — Instant battles against any duelist with configurable rules and AI behavior
• Fusion & Merge Simulators — Test fusion combinations and practice in the merge system
• Online PvP — Ranked matchmaking with ELO system, casual duels, tournaments, and live spectating

Each of the 39 campaign duelists has a unique drop table with specific cards that can be obtained by defeating them. The cards you receive depend on your duel rank (POW or TEC) and the rank tier (S through D). Higher ranks generally unlock rarer cards. The site shows every duelist's full drop table so you can plan exactly which opponents to farm for the cards you need.

Yes! Online PvP is fully supported with ranked matchmaking with an ELO system, casual free duels, scheduled tournaments with prize pools, and live spectating. Challenge players worldwide, climb the leaderboard, and earn starchips to spend on cosmetic items in the shop.

Yes — completely free. All the original game data, every browser game mode, and all tools like the Rank Calculator, Win Rate Calculator, and Card Overview are accessible at no cost. There are no downloads, no emulators, and no hidden charges. Just open your browser and play.