Economy

Economy covers every way to earn coins in Build a Country: rent, production, selling, and everything that multiplies them.

Currencies

• Coins: the main currency. Earned from rent, produce, auto-sell buildings and events.
• Ocean Cash: earned only from ocean buildings and ocean flags; buys ocean buildings and ocean skills. See Ocean.
• Ancient Cash: the Ancient Egypt event currency (September 5 to 26, 2026).
• Alien Cash: the Alien Invasion event currency (September 26 to October 21, 2026). Paid by alien homes and alien economy buildings.
• Alien Fragments: dropped by aliens your troops kill and paid by the Alien Boss. They buy the three Exotic alien buildings.

Rent

Every citizen living on your plot pays 1 coin per second (60 per minute), capped at 100 coins per second per plot. Ocean citizens pay 0.05 Ocean Cash per second (capped at 25 per second) Ancient Egypt citizens pay 0.02 Ancient Cash per second (capped at 10), and alien citizens pay 0.02 Alien Cash per second (capped at 10) during the Alien event. Rent skills (Rent I and II, Landlord, Estates, Empire) and the 2x Money gamepass multiply rent.

Workers

Citizens are also your workforce. Every economy building has worker slots; click the building to assign citizens. A building only produces while at least one slot is filled, and its speed scales with how full it is. The 2x Population gamepass doubles the citizens each house adds. A Central Park makes homes within 40 studs hold 25% more citizens (the best park counts, parks do not stack). Hiring costs 15% less with the Recruiter skill.

Production

• Buildings that store produce keep it until you press E at the building, or a Collector carries it to your Box. Storage is capped per building (Storage I, II, Warehouse, Depot and Deep Pockets raise the cap).
• Auto-sell buildings (Bank, offices, Radio Tower, Power Plant and so on) turn their produce straight into coins every minute.
• Schools speed up every economy building within their range: Elementary School x1.10 within 40 studs, Secondary School x1.20 within 65 studs, University Campus x1.35 within 100 studs. Schools of the same kind must be spaced apart.
• The President boosts all production by 50% while alive. Worker Potions give 2x for 5 minutes.
• The first 10 producing buildings on a plot run at full speed, plus half a building for every expansion tile you have unlocked. Producers beyond that run at half speed.
• Solar Panels and Solar Panel Farms only work in daylight and clear weather, and need no workers.

Selling

Sell produce at the sell NPC, or let a Merchant do it. Sell skills (Trader I, II and III, Tycoon), Merchant trucks, held flags (+15% cash per middle flag, +30% for the centre), the 2x Money gamepass, the group reward (+10%), events (2x, 4x, 8x cash) and produce traits all multiply the price. The Lucky skill gives every sale a 5% chance to pay double. Buildings and hireables sell back for one third of their price (Refund skill: +25%).

While you are away

Your country keeps working while you are offline:

• production continues for up to 24 hours at half speed,
• rent keeps coming in for up to 24 hours (Twilight, Nightowl and Moonlight raise offline rent; Dreamer gives a 10% chance to double it),
• constructions keep building.

When you come back a summary shows everything that happened. Time-skip products in the Robux Shop pay the same income instantly with no offline limits.

Shop and stock

The shop restocks every 5 minutes, and stock is the same for every player in every server. Chance a rarity appears in a restock, and its maximum stock:

During the Alien event the three Fragment buildings roll in the Alien shop like any other Exotic. A Stock Potion adds one of every item except Godlike items for you only, and the Restock Now product rerolls the shop with double luck. Shop skills (Shop I to IV) cut every building price by up to 10% each, and the Exotics skill halves Exotic prices.

Plot expansion

Your plot starts with a 2x2 buildable area. Walk up to any blocked tile that touches your land and pay to clear it. There are 32 land tiles and 12 ocean tiles (the ocean tiles unlock the Ocean).

Building speed

Every fully staffed Builder's Cabin adds +1x to your build speed (1 cabin = 2x, 2 cabins = 3x, up to 20x; Foreman skills let more cabins count). The 2x Builder Speed gamepass doubles that, and the weekend Builder Blitz doubles it again every Saturday and Sunday (UTC). Builder skills cut build times, Hammers skip half the remaining time, and Golden Hammers finish a building instantly.