About TCG ONE
TCG ONE(also known as TCG1) is an Online Automated Pokemon Trading Card Game Simulator where players can gather online and play with their favorite cards in their respective formats. Its software is completely fan-made and is in no way affiliated with TPCI or its official game. We've been online since 18 July 2013!
Features
- Automated Game Mechanics with full rule enforcement
- Online 1-on-1 play with real opponents
- Deck Editor with import/export support
- Lobby & Chat
- Real Card Images from every expansion
- Multiple Game Formats — Standard, Expanded, and Classic Old School formats
- Spectation — watch live games in progress
- Game scoring system and Scoreboards
- Career and Quickplay game modes
- Personal Inventory — collect and manage your cards
- Assemble/Dissolve cards with ink
- Leveling and progression
- Booster Pack simulator
- Daily Quests and Achievements
- Random Deck Generator
Community
Join our community on Discord to find opponents, discuss strategies, and stay up to date with the latest developments.
Visit our Forums for detailed discussions, feature requests, and bug reports.
Contributing
Check out the Contribution Guide to learn how you can help implement new cards or improve the platform.
Support
If you enjoy TCG ONE, consider supporting the project on Patreon. Your support helps keep the servers running and enables continued development.
Thank you everyone for playing TCG ONE, and a special thank you to everyone who contributes to the continuous development of the site. We are all responsible for making this site safe, inviting, and fun for everyone. Get out there and have fun playing together!
This site and its software are fan-made and in no way affiliated with Pokemon, Nintendo, Wizards, or TPCi. Card images and text presented on this site are copyrighted by their respective owners.
Frequently Asked Questions
What is TCG ONE?
TCG ONE (also known as TCG1) is a free, fan-made online automated Pokémon Trading Card Game simulator. It lets players build decks, play games, and enjoy the Pokémon TCG entirely in their web browser — no downloads, no installations, no purchases required. The game engine handles all rules, card effects, and interactions automatically, so you can focus on strategy. TCG ONE has been online since July 18, 2013, and over 4 million games have been played on the platform.
Is TCG ONE free to play?
Yes! TCG ONE is completely free to play. There are no paywalls, no advertisements, and no pay-to-win mechanics. Every card is available to every player from the start — you don't need to buy booster packs or trade to get cards. The platform is funded entirely through voluntary Patreon donations from the community. Optional supporter perks exist (like solo mode and custom format hosting) but the core game is 100% free.
How do I play the Pokémon TCG simulator online?
It's easy! Go to play.tcgone.net, create a free account, and you're ready to go. Build a deck using the built-in deck editor (or use the random deck generator for quick fun), then create or join a game from the lobby. The simulator handles all game mechanics automatically — drawing cards, playing trainers, attacking, applying weakness/resistance, managing prizes, and enforcing all rules. No prior programming or TCG Online experience needed!
What cards and sets are available in the simulator?
TCG ONE has over 16,000 cards programmed and playable, spanning every generation of the Pokémon TCG from the original Base Set (1999) through modern expansions. This includes sets like Base Set, Jungle, Fossil, Team Rocket, Gym Heroes, Neo Genesis, EX Ruby & Sapphire, Diamond & Pearl, HeartGold SoulSilver, Black & White, XY, Sun & Moon, Sword & Shield, Scarlet & Violet, and everything in between. New expansions are continuously added by the volunteer development team.
What game formats can I play on the Pokémon TCG simulator?
TCG ONE offers 40+ playable formats covering the entire history of the Pokémon TCG! You can play Standard (current rotation), Expanded (BW-on), Legacy (HGSS-BW era), and dozens of retro formats like Base-Fossil, Base-Gym, Base-Neo, Neo-On, EX Series, Diamond & Pearl-on, and many more. Plus, with the Custom Formats feature, you can create your own format variants with custom card pools, rules, and restrictions. Every format uses its era-appropriate ruleset for authentic gameplay.
Does the simulator handle all game rules automatically?
Yes! TCG ONE is a fully automated simulator — it enforces all game mechanics without manual intervention. This includes drawing, mulligans, evolving, attaching energy, playing trainers/supporters/stadiums, attacking with correct damage calculation (weakness, resistance, effects), special conditions (poison, burn, sleep, paralysis, confusion), prize cards, retreating, abilities/powers/bodies, and complex card interactions. The engine handles thousands of unique card effects correctly.
Can I play classic retro Pokémon TCG formats from the 90s and 2000s?
Absolutely! This is one of TCG ONE's biggest strengths. You can play the original Base Set-Fossil format just like it was in 1999, the Gym era, the Neo era, the EX Ruby & Sapphire era, and every era since. Each format uses its historically accurate ruleset — so the Base-Fossil format uses the original Wizards rules, while Diamond & Pearl uses its era's rules. It's the perfect way to relive the Pokémon TCG from any generation or discover eras you missed!
How does the deck editor work?
The deck editor is a powerful built-in tool for constructing decks. Select a format, and it shows only legal cards for that format. Search by name, type, set, or any attribute. The editor enforces deck rules automatically (deck size, copy limits, basic Pokémon requirement). You can import deck lists by pasting text, export your deck to share with others, and browse public decks for inspiration. There's also a random deck generator if you want to jump in and play immediately!
Can I play multiplayer Pokémon TCG games online with friends?
Yes! TCG ONE is built for multiplayer. Create a game room in the lobby, choose your format and deck, and either invite a friend directly or match against a random opponent. Games support live spectating so others can watch, configurable timers, and password-protected rooms for private matches. You can also use the lobby chat to find opponents and socialize.
Is there a single-player mode in the Pokémon TCG simulator?
Yes! TCG ONE offers Career Mode and Solo Mode. Career Mode features a progression system where you earn rewards, level up, complete daily quests, unlock achievements, and open booster packs. Solo Mode (available to Patreon supporters at $5/month) lets you play practice games against AI opponents in any format. Both are great for testing decks or enjoying the game when no opponent is around.
What is the Career Mode?
Career Mode is TCG ONE's progression system. You start with a personal card inventory, earn cards through booster packs and quest rewards, build decks from your collection, and play ranked games to climb the leaderboard. Features include: daily quests with unique objectives, achievements for long-term goals, a leveling system that tracks your progress, an ink system to assemble/dissolve cards, and seasonal scoreboards. It's the full TCG experience with progression — completely free!
Do I need to download anything to play?
No downloads needed! TCG ONE runs entirely in your web browser. It works on any modern desktop browser (Chrome, Firefox, Safari, Edge) and is also compatible with tablet browsers. Just go to play.tcgone.netand start playing. No Java, no Flash, no plugins — just a browser and an internet connection.
How is TCG ONE different from Pokémon TCG Live / PTCGO?
TCG ONE offers several unique advantages: it's completely free with all cards available immediately (no grinding or purchasing), it supports 40+ formats including classic retro formats from every era (not just current Standard/Expanded), it has 16,000+ cards implemented across all generations, and it features custom formats where you can create your own rules. TCG ONE is a fan-made simulator focused on giving players maximum freedom to play any format, any deck, any time — no collection required.
Can I spectate other players' games?
Yes! You can watch any ongoing game in real-time from the lobby. Spectating is a great way to learn strategies, watch top players compete, or just enjoy the game without the pressure of playing. Spectators can see both players' boards and follow the action as it unfolds.
What is the inventory and ink system?
In Career Mode, you have a personal card inventory. You obtain cards from booster packs, quest rewards, and achievements. The ink system lets you dissolve unwanted cards into ink (a universal currency) and then assemble specific cards you need using ink. This means you can always get the exact cards you want for your decks — no random luck required. Think of it as a crafting system for your card collection.
Are there quests, achievements, and progression?
Yes! TCG ONE features daily quests (win with specific types, play certain cards, etc.), long-term achievements (reach milestones, complete challenges), a player leveling system, seasonal leaderboards, and game scoring. These give you goals to work toward and rewards for playing, making the experience feel like a complete online TCG with meaningful progression.
Is there a random deck generator?
Yes! If you want to jump in quickly without building a deck from scratch, the random deck generator creates a playable deck for any format with one click. It's great for casual play, trying new formats, or when you just want to have fun without spending time on deck construction. You can also randomize specific slots in your deck.
How does the Pokémon TCG simulator handle card effects and abilities?
Every card in TCG ONE is individually programmed using a custom game engine built from scratch. Card effects, Pokémon abilities/powers/bodies, trainer cards, and energy interactions are all fully automated. The engine handles complex scenarios like ability stacking, effect ordering, conditional triggers, and multi-step attacks. Over 16,000 cards are implemented with their complete effects, making TCG ONE one of the most comprehensive Pokémon TCG simulators ever built.
Who builds and maintains TCG ONE?
TCG ONE is built and maintained by axpendix (the platform architect) along with a dedicated team of volunteer developers. All card effects and game mechanics are programmed from scratch using a custom DSL (Domain-Specific Language) in Groovy. The project has been running since 2013 and continues to evolve with new cards, features, and improvements. Community contributions are welcome — check the forum to learn how to get involved!
How can I support the project?
The best way to support TCG ONE is through Patreon. Your support keeps the servers running, enables new feature development, and helps the team dedicate more time to the platform. Supporters get perks like solo mode, custom format hosting, and more. You can also contribute by reporting bugs on the forum, helping implement cards, or simply spreading the word to fellow Pokémon TCG fans!
What are Custom Formats and how do they work?
Custom Formats is a beta feature that lets players create their own format variants. Take any base format and customize it: tweak the card pool using search filters and ban lists, add validation rules (like one Pokémon type only or star-budget systems), change deck size and prize count, modify game rules, and even add environment effects that alter gameplay globally. Once published, anyone can browse your format, build decks, and play games with it. Visit the Custom Formats page to explore community-created formats!
Is TCG ONE affiliated with Nintendo or The Pokémon Company?
No. TCG ONE is an entirely fan-made project and is in no way affiliated with Nintendo, The Pokémon Company International (TPCi), Wizards of the Coast, or any official entity. Card images and text presented on the site are copyrighted by their respective owners. TCG ONE is a passion project built by fans for fans.
How can I find opponents to play against?
There are several ways to find games! The lobby at play.tcgone.net shows all open game rooms you can join. The Discord serverhas active players looking for matches at all times. You can also create a game room and wait for a random opponent to join. The community is welcoming to new players, so don't hesitate to jump in!
What devices and browsers does the simulator support?
TCG ONE works on any modern web browser — Chrome, Firefox, Safari, and Edge are all supported. It's primarily designed for desktop browsers but also works on tablet browsers. No downloads, plugins, or special software required. For the best experience, a desktop or laptop with a reasonably sized screen is recommended.
How many cards are implemented in the Pokémon TCG simulator?
TCG ONE has over 16,000 cards fully programmed and playable! This covers cards from Base Set (1999) through modern sets, including promos, special sets, and cards from regions that never got English releases. Each card's effects, attacks, abilities, and interactions are individually coded and tested. The development team continuously adds new cards as they release.
Can I report bugs or request features?
Yes! Visit the TCG ONE forum to report card bugs, suggest features, or discuss the platform. The development team actively monitors the forum and prioritizes based on community feedback. You can also join the Discord server for quicker discussions. Bug reports with specific card names and game scenarios are especially helpful!
Is there a competitive scene or ranked play?
Yes! TCG ONE features a scoring system and seasonal leaderboards. Win games to earn points and climb the rankings. Each season tracks top players across formats. While it's not an official tournament circuit, the community organizes events and the leaderboard gives competitive players something to strive for. Career Mode games contribute to your ranking.