HMOtaku > Games > Island of Happiness > Island Development

Island Development

The Development Percentage for Sunny Island is listed on the Assets Menu. It increases as new villagers move in or upgrades are made across the island (having children contributes, as well). Developing the island will attract more villagers and open up more places for you to explore.

Jump to:
Development Percentage | Upgrade Materials | Upgrade Options

Development Percentage

Population Growth

Your development percentage permanently increases by 0.5% for each villager that moves to Sunny Island; even if they move away again, you'll never lose their percentage boosts. Some characters' arrivals give a bonus in percentage increase, such as Gannon's extra 3%. New villagers may arrive for some of the following reasons:

  • You shipped a required number of certain items.
  • Specific villagers have already moved in.
  • You gained access to a new part of the island.
  • You reached a certain date in the game.
Island Property

Excluding upgrades on your own ranch, changes to island property also increase your development percentage.

  • Villager moves into an abandoned house: +7%
  • New house built: +5%
  • Villager's house upgraded: +3%
Bridges and Roads

Eight roads and three bridges can be built on the island. Since your development percentage increases by 3% for each one, this accounts for about a third of the total possible island development.

Upgrade Materials

To build or upgrade anything, you'll need money and materials. Most projects are built with Lumber, but some may require Gold Lumber or certain ores. If you don't want to collect the materials yourself, you can usually pay Gannon to supply them. However, chopping your own Lumber or preparing your own Material Stone will save you a considerable amount of money.

Upgrade Options

Ranch upgrades aren't required, but some allow you to make and ship certain items that are needed to attract more villagers.

Jump to:
House | Chicken Coop | Barn | Stable | Supply Shed | Maker Shed | Greenhouse | Bridges | Roads

House
Upgrade Type Lumber Needed Basic Cost Lumber +
Work Cost
Requirements
1st House Upgrade 200 pieces 3,000 G 10,000 G Gannon moved in
2nd House Upgrade 400 pieces 10,000 G 25,000 G 1st House Upgrade
3rd House Upgrade 700 pieces 50,000 G 80,000 G Get married
Add Bath 580 pieces 30,000 G 55,000 G 2nd House Upgrade
Add Restroom 400 pieces 20,000 G 35,000 G 2nd House Upgrade
1st Storage Upgrade 100 pieces 2,000 G 6,000 G - 10,002,000 G Buy storage device* from Chen
2nd Storage Upgrade 200 pieces 10,000 G 20,000 G - 20,010,000 G 1st Storage Upgrade
3rd Storage Upgrade 300 pieces 100,000 G 1,010,000 G - 31,000,000 G 2nd Storage Upgrade
Upgrade Storage Quality **[See note] -- 1,000 G - 5,000,000 G Buy storage device from Chen
* Storage devices are the Tool Box, Beauty Box, Cabinet, and Fridge.
** You may revamp your storage devices by choosing a different construction material (i.e., Lumber, Material Stone, Golden Lumber, or Mythic Stone).

Chicken Coop
Upgrade Type Lumber Needed Basic Cost Lumber +
Work Cost
Requirements
Build Chicken Coop 200 pieces 10,000 G 20,000 G Gannon moved in
1st Coop Upgrade 400 pieces 5,000 G 20,000 G Chicken Coop
2nd Coop Upgrade 1,200 pieces 20,000 G 70,000 G 1st Coop Upgrade
Add Feeder* 100 pieces 500 G 5,000 G Chicken Coop
Add Incubator* 200 pieces 500 G 10,000 G Chicken Coop
1st Feed Dispenser Upgrade 1,000 pieces 5,000 G 50,000 G Chicken Coop
2nd Feed Dispenser Upgrade 3,000 pieces 30,000 G 170,000 G 1st Feed Dispenser Upgrade
Add Shipping Bin 200 pieces 1,000 G 10,000 G Chicken Coop
* Maximum capacity increases as Coop is upgraded.

Barn
Upgrade Type Lumber Needed Basic Cost Lumber +
Work Cost
Requirements
Build Barn 200 pieces 12,000 G 22,000 G Gannon moved in
1st Barn Upgrade 500 pieces 7,000 G 30,000 G Barn
2nd Barn Upgrade 2,000 pieces 30,000 G 125,000 G 1st Barn Upgrade
Add Feeder* 100 pieces 500 G 5,000 G Barn
Add Birthing Pen* 200 pieces 500 G 10,000 G Barn
1st Feed Dispenser Upgrade 1,500 pieces 7,000 G 80,000 G Barn
2nd Feed Dispenser Upgrade 4,500 pieces 50,000 G 270,000 G 1st Feed Dispenser Upgrade
Add Shipping Bin 200 pieces 1,000 G 10,000 G Barn
* Maximum capacity increases as Barn is upgraded.

Stable
Upgrade Type Lumber Needed Basic Cost Lumber +
Work Cost
Requirements
1st Feed Dispenser Upgrade 1,000 pieces 5,000 G 50,000 G Gannon moved in
2nd Feed Dispenser Upgrade 3,000 pieces 30,000 G 170,000 G 1st Feed Dispenser Upgrade

Supply Shed
Upgrade Type Lumber Needed Basic Cost Lumber +
Work Cost
Requirements
Material Stone Storage 500 pieces 10,000 G 30,000 G Gannon moved in
Gold Lumber Storage 500 pieces 100,000 G 120,000 G Gannon moved in
Increase Capacity 500 pieces 5,000 G 27,000 G Gannon moved in

Maker Shed
Upgrade Type Materials Needed Basic Cost Materials +
Work Cost
Requirements
Build Maker Shed 300 pcs Lumber 30,000 G 40,000 G Gannon moved in
Upgrade Maker Shed 1,000 pcs Lumber 5,000 G 50,000 G Maker Shed
Build Basic Maker* 10 pcs Adamantite 20,000 G **[See note] Maker Shed
Build Seed Maker 10 pcs Adamantite 50,000 G **[See note] Maker Shed
Add Thresher & Flour Mill 20 pcs Adamantite 100,000 G **[See note] Maker Shed upgraded
Add Quality Improver 100 pcs Adamantite 5,000,000 G **[See note] Maker Shed upgraded
Add Shipping Bin 200 pcs Lumber 1,000 G 10,000 G Maker Shed
* Basic Makers produce Butter, Cheese, Mayonnaise, Yarn, and Yogurt.
** You will have to mine Adamantite yourself, since Gannon does not provide it.

Greenhouse
Upgrade Type Lumber Needed Basic Cost Lumber +
Work Cost
Requirements
Build Greenhouse 4,000 pieces 300,000 G 500,000 G Gannon moved in
Upgrade Greenhouse 9,000 pieces 500,000 G 950,000 G Greenhouse
Add Shipping Bin 200 pieces 1,000 G 10,000 G Greenhouse
Add Water Faucet 400 pieces 500,000 G 520,000 G Greenhouse

Bridges
Upgrade Type Lumber Needed Basic Cost Lumber +
Work Cost
Requirements
East Town - Meadow Bridge 500 pieces 10,000 G 35,000 G Gannon moved in
West Town - Forest Bridge 500 pieces 20,000 G 45,000 G East Town - Meadow Bridge
East Town - Jungle Bridge 500 pieces 30,000 G 55,000 G West Town - Forest Bridge
Roads

There are 8 roads that can be built for 10,000 G each, and one must be finished before you can build the next one. They are available in this order:

  1. Road from Ranch
  2. West Town Main Road
  3. Road to Beach
  4. Road to Regis's house
  5. Road to Pierre's house & the Original Inn
  6. Road at the Original Inn
  7. Road at the Café & Luke's Diner
  8. Road to Meadow

Animals
Characters
Children
Festivals
Heart Events
Island Development
Island Map
Marriage
Music
Ranch Points
Shops
Suteki Stones





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