Hi
i have a suggestion for new island building - Island infrastructure. Each level of building would provide small boost to resource production for all cities that island, up to +10%. All players on that island could donate their resources to increase building level (just like quarries and miracles). Since wood is already used to upgrade saw and quarries "island infrastructure" would require luxury resources. To avoid having to place another building icon on the island you could access "island infrastructure" via Agora
Building would have 5 levels:
Lv.1: Dirt roads - cost: 10.000, Effect +2% to all resource production
Lv.2: Stone roads - cost: 100.000, Effect +4% to all resource production
Lv.3: Paved roads - cost: 1.000.000, Effect +6% to all resource production
Lv.4: Watchtowers - cost: 10.000.000, Effect +8% to all resource production
Lv.5: Highway patrols - cost: 100.000.000, Effect +10% to all resource production
Why would that building be useful addition to the game:
1. Luxury resources could be donated even after Lv.5 miracle has been constructed
2. Would provide small boost to resource production scaling with island development (even at max level the effect would not be game-breaking since +10% production in not that much)
3. Would provide incentive for players to stay on same islands and encourage cooperation
4. Another way for people to spend ambrosia in game