Main ingredients

• Start at Zelda - A Link to the Past
• Expand the world massively
• Add hundreds of NPC's (humans and animals) for a living world
• Add to factions with thousands of soldiers
• Spice it up with some kind of GoT like story (before season 6!)
• Let them wage war with dynamic warfare
• Insert a mysterious relict
• Add some fantasy elements à la Princess Mononoke
• Decelerate everything slightly like Journey
• Season it with a bit Dark Souls melancholy
• Add the player and choose your destiny
• Let the war begin!

https://rubikonthegame.wixsite.com/devblog
https://www.reddit.com/r/Rubikon_Game/
https://fb.me/RubikonTheGame