CHAIN DUEL

The fight for the longest Branch

Play Now Contribute

Lightning
Competition

Compete in a Bitcoin-native game where sats are part of the gameplay.

Built In
Public

Follow a project with global event traction and open-source roots.

Multiple Ways
To Join

Play, contribute, fund, or follow the community through your preferred channel.

EVENTS

Showcased at major Bitcoin and Lightning conferences worldwide.

Chain Duel at Bitcoin 2024 in Nashville

Bitcoin 2024, Nashville 🇺🇸

Chain Duel at BTC Prague 2024

BTC Prague 2024 🇨🇿

Chain Duel at Bitcoin Film Fest Halving Party 2024 in Warsaw

Bitcoin Film Fest Halving Party 2024, Warsaw 🇵🇱

Chain Duel at Innovation Legacy Fest 2024 in San Salvador

Innovation Legacy Fest, Parque Cuscatlán 2024, San Salvador 🇸🇻

Chain Duel at Santorini Halving Party 2024

Love is Bitcoin Halving Party 2024, Santorini 🇬🇷

Chain Duel at Bitcoin Day 2024 in Berlin

Bitcoin Day 2024, Berlin 🇩🇪

Chain Duel at Bitcoin Atlantis 2024 in Funchal

Bitcoin Atlantis 2024, Funchal 🇵🇹

Chain Duel at Amity Age 2023 in Roatan

Amity Age 2023, Rotan 🇭🇳

Chain Duel at Adopting Bitcoin 2023 in San Salvador

Adopting Bitcoin 2023, San Salvador 🇸🇻

Chain Duel at BTC Azores 2023

BTC Azores 2023, Azores 🇵🇹

Chain Duel at Plan B Forum 2023 in Lugano

Plan B Forum 2023, Lugano 🇨🇭

Chain Duel at Build the Builders 2023 in Viareggio

Build the Builders 2023, Viareggio 🇮🇹

Chain Duel at Baltic Honey Badger 2023 in Riga

Baltic Honey Badger 2023, Riga 🇱🇻

Chain Duel at Bitcoin Amsterdam 2023

Bitcoin Amsterdam 2023, Amsterdam 🇳🇱

Chain Duel at Cubo Plus 2023 in El Zonte

Cubo+ 2023, El Zonte 🇸🇻

Chain Duel at Bitcoin Park 2023 in Nashville

Bitcoin Park 2023, Nashville 🇺🇸

Chain Duel at Bitcoin 2023 in Miami

Bitcoin 2023, Miami 🇺🇸

Chain Duel at Lightning Summit 2023 in Viareggio

Lightning Summit 2023, Viareggio 🇮🇹

Upcoming

Past

  • Bitcoin 2026, Las Vegas 🇺🇸
  • Bitcoin Ireland 2026 🇮🇪
  • BTC Prague 2026 🇨🇿
  • BTC HEL 2026 🇫🇮
  • Bitcoin Amsterdam 2026 🇳🇱
  • Lightning Summit, Tuscany 2023 🇮🇹
  • Bitcoin Miami 2023 🇺🇸
  • Le Paradigme Bitcoin 2023 🇨🇭
  • Power of Lightning Summit, Bitcoin Park 🇺🇸
  • Baltic Honey Badger 2023 🇱🇻
  • Bitcoin Azores 2023 🇵🇹
  • Bitcoin Amsterdam 2023 🇳🇱
  • Build the Builders, Tuscany 2023 🇮🇹
  • Plan B Forum 2023 🇨🇭
  • Adopting Bitcoin 2023 🇸🇻
  • Bitcoin Atlantis 2024, Madeira 🇵🇹
  • Lightning Summit, Tuscany 2024 🇮🇹
  • Bitcoin Alive 2024 🇦🇺
  • Bitcoin Prague 2024 🇨🇿
  • Santorini Halving Party 2024 🇬🇷
  • Bitcoin Film Fest Halving Party 2024, Warsaw 🇵🇱
  • Innovation Legacy Fest 2024 🇸🇻
  • Bitcoin Day 2024, Berlin 🇩🇪
  • Bitcoin Conference 2024, Nashville 🇺🇸
  • Bitcoin Amsterdam 2024 🇳🇱
  • Plan B Forum 2024 🇨🇭
  • Satsconf 2024 🇧🇷
  • Adopting Bitcoin 2024 🇸🇻
  • Bitcoin Las Vegas 2025 🇺🇸
  • Barcelona Cyphers Conference 2025 🇪🇸
  • Baltic Honey Badger 2025, Riga 🇱🇻
  • BTC Helsinki 2025 🇫🇮
  • BTC Balkans 2025 🇧🇬
  • Bitcoin Amsterdam 2025 🇳🇱
  • Adopting Bitcoin 2025 🇸🇻

SPLITS

A fraction of the wagered sats is distributed on Lightning to the contributors of the project.

Chain Duel value-for-value Lightning split diagram

INFRASTRUCTURE

The architecture integrates multiple open-source projects and encourages the adoption of Bitcoin as a payment system.

TEAM

Two Portuguese friends building Chain Duel—focused on Bitcoin, community, and practical adoption.

Francis Mars profile photo

Francis Mars

Engineer

Extrovert builder focused on execution, UX, and community momentum. Known for practical decisions and systems thinking.

Website GitHub Nostr x.com

Pedro profile photo

Pedro 🧨

Designer

Creative lead shaping visual experience with relentless curiosity, craft, and a sharp eye for Bitcoin-native product storytelling.

Website GitHub Nostr x.com