Features

Game operations:

• loading scenario (*.map) from original game
• loading savefile (*.sav) from original game
• saving game to OC3 file
• loading game from OC3

Interface:

• campaign loading menu
• top menu bar as in original game
• advisors interface
• map layers
• game settings window(s)
• "big" side menu
• "small" side menu
• minimap
• message bar
• empire map (for trading)

In-game features:

• armies
• trading
• building upgrading (due to higher level of desirability/prosperity)
• calculating ratings
• earthquakes
• caesar requests

Buildings & Constructions

1. Houses
2. Roads
3. Engineering: 3.a. Reservoir 3.b. Aqueduct 3.c. Fountain 3.d. Well
4. Health 4.a Barber 4.b. Baths 4.c. Doctor 4.d. Hospital
5. Religion 5.a. Small temple 5.a.I. Ceres 5.a.II. Neptune 5.a.III. Mercury 5.a.IV. Mars 5.a.V. Venus 5.b. Big temple 5.b.I. Ceres 5.b.II. Neptune 5.b.III. Mercury 5.b.IV. Mars 5.b.V. Venus 5.c. Oracle
6. Education 6.a. School 6.b. Academy 6.c. Library 6.d. Mission post
7. Entertaiment 7.a. Theater 7.b. Amphitheater 7.c. Colosseum 7.d. Hippodrome 7.e. Gladiator school 7.f. Lion house 7.g. Actor colony 7.e. Chariot maker
8. Administration 8.a. Forum 8.b. Senate 8.c. Governor's house 8.d. Governor's villa 8.e. Governor's palace 8.f. Small statue 8.g. Medium statue 8.h. Big statue
9. Engineering 9.a. Gardens 9.b. Plaza 9.c. Engineers' post 9.d. Low bridge 9.e. Ship bridge 9.f. Shipyard 9.g. Dock 9.h. Wharf
10. Security 10.a. Wall 10.b. Tower 10.c. Gatehouse 10.d. Prefecture 10.e. Fort 10.e.I. Legionaries 10.e.II. Auxiliaries - Javelin 10.e.III. Auxiliaries - Mounted 10.f. Military academy 10.g. Barracks
11. Industry 11.a. Farm 11.a.I. Wheat 11.a.II. Vegetables 11.a.III. Fruits 11.a.IV. Pigs 11.a.V. Olives 11.b. Raw materials 11.b.I. Marble quarry 11.b.II. Iron mine 11.b.III. Timber yard 11.b.IV. Clay pit 11.c. Workshop 11.c.I. Wine 11.c.II. Oil 11.c.III. Weapons 11.c.IV. Furniture 11.c.V. Pottery 11.e. Market 11.f. Granary 11.g. Warehouse
12. Clear land (remove construction/building)