We are porting Anno 1503 A.D. — Royal Edition (The New World + Treasures, Monsters & Pirates / German Königsedition) to native 64-bit C++20 & SDL2, including the restoration of its long-awaited 1–4 player multiplayer and shared-empire co-op!

Replacing the 2003 Modular DLL Stack

• Native .ann Archive & _zei Zoom Sprite Pipeline: Loads all three isometric zoom levels (_zei, _ani, anlagen.zei) directly into a hardware-accelerated SDL2 texture cache for smooth 60 FPS scrolling across large cities.
• Bit-Exact 20 Hz Economy Simulation: Keeps island production chains, market carts, and trade ships 100% deterministic across x86_64 and ARM64.
• Restored Multiplayer & Shared-Empire Co-op: Connects 1–4 players in either classic multi-island competition/alliances or cooperative control of a single shared empire.

Purchase your copy of Anno 1503 A.D. — The New World on GOG.com and read the full technical breakdown on the Anno 1503 A.D. Port Page.