BigHero NexusGUNDAM GCG
VERSION 0.1.0 PLAYABLE THROUGH GD04

The GUNDAM Card Game,
playable in your browser

Build a deck and jump straight into a match — against another pilot online, a friend in a private room, or the AI. No installs, no account, completely free.

Open Deck Builder →
Card ReleaseDeck validation runs before every match starts.

Get automatically matched with another waiting player. Uses the deck above.

Play a solo game against a computer opponent.

3-4 Player Mode

Battle Royale

Create a table for 3 or 4 players, share the code, then start once everyone joins.

Battle Royale 3–4 players
This mode is temporarily disabled by the admin.
Version 0.1.0 · Playable through GD04

Choose your table

Play online, practice against AI, open a private room, or create a 3-4 player Battle Royale table.

⚡

Online Multiplayer

Use Quick Play to be matched with another waiting pilot, or open a private room and share the code with a friend.

🎮

Battle Royale

Open a 3-4 player table with its own room code and couch-grid style board layout.

🤖

Practice vs AI

Drill your strategy against computer opponents running a range of starter and meta decks at adjustable speeds.

🎨

Alternative Art Support

Use supported alternate card artwork in the simulator with Deck Builder.

Real Game Screenshots

See the simulator in action

Actual gameplay screens showing the board, card detail panel, log, AI matches, and alternate card artwork support.

BigHero Nexus gameplay screenshot with red board theme
Live Match BoardRed Theme
BigHero Nexus gameplay screenshot with green board theme
AI Match BoardGreen Theme
BigHero Nexus gameplay screenshot with white board theme
Live Match BoardWhite Theme
Patch Notes

Beta first release

This is the first public beta release of BigHero Nexus. Some bugs may still happen while the simulator continues to improve. Thanks for playing, and enjoy the game.

Version 0.1.0

Playable through GD04 with online matches, private rooms, AI practice, Battle Royale, Deck Builder support, and supported alternate card artwork.

BetaFirst public release. Gameplay is ready to test, but small bugs may still appear.
Playable CardsDefault release mode supports cards up to GD04.
FeedbackPlease report anything strange so the simulator can keep improving.
Getting Started

Three steps to your first match

Build your deck

Paste a decklist into the box above, or open the Deck Builder to create and save a supported deck.

Choose a mode

Quick Play for a random opponent, a private room to play with a friend, Battle Royale for 3-4 players, or a solo match against the AI.

Battle

The game runs each phase, effect and combat step for you in real time. Make your plays and take the win.

Live Matches

1 active
ModeRoomPlayersTurnIdle
1v1 SD5XLL
Operation Fallen Angels
 Athrun Zala vs Advanced AI Wing G/W - 152s Spectate
Feedback & Bug Report

Disclaimer

BigHero Nexus is an unofficial, non-commercial simulator for personal playtesting and learning. It is not affiliated with, endorsed by, or sponsored by Bandai, Sotsu, Sunrise, or any official rights holder. All card names, images, characters, logos, and related trademarks remain the property of their respective owners. Version 0.1.0 currently supports playable setup through GD04 and may be changed, limited, or taken offline at any time.