realm.setResourceManager(new ResourceManager());
realm.setBonusResourceManager(new BonusResourceManager());
realm.setTileTypeManager(new TileTypeManager());
realm.setVegetationManager(new VegetationManagerImpl());
realm.setTileImprovementTypeManager(new TileImprovementTypeManager());
realm.setSettlementImprovementManager(new SettlementImprovementManager());
realm.setUnitTypeManager(new UnitTypeManager());
realm.setNationManager(new NationManager());
realm.setPlayerManager(new PlayerManager());
realm.setDiplomacy(new Diplomacy());
realm.setHistory(new FreeRealmHistory());