| Type | Cost | Spaces |
| Plasma-D Canister | 0.5EP | 1 |
| Type-I Drone | 1EP | 1 |
| Type-II Drone | 1.25EP | 1 |
| Type-III Drone | 2EP | 1 |
| Type-IV Drone | 2EP | 2 |
| Type-V Drone | 2.5EP | 2 |
| Type-VI Drone | 0.5EP | 1/2 |
| Anti-Drone | 0.25EP | 1/2 |
| Transporter Bomb | 1EP | 1 |
| Speed-20 Propulsion | +0.5EP | Per Drone Space |
| Speed-32 Propulsion | +1EP | Per Drone Space |
All drone-using bases (ground- and space-based) include a full set of Type-I Slow drones (and/or Type-IV Slow drones if Double Warheads has been researched) and appropriate reloads. As their stores dwindle, they may purchase replacement drones individually at full cost. These replacement drones do not need to be shipped to the base.
Drone-using ships must purchase their first load of standard drones at full price. This must be a legal drone load for the launchers on the ship. Reloads identical to the first load come free. Whenever the ship is restocked by a base or major planet, all expended drones are replaced on a one-for-one basis at no cost.
Type-I and Type-IV drones may be swapped for each other (2 Type-Is for 1 Type-IV) at no cost during resupply. Type-II and Type-V may follow the same procedure.
Carriers and fighter bases/modules may each hold a certain number of drones for their fighters. This is listed either on the Master Ship Chart or in their ship descriptions (or both), and may be free storage or it may use Cargo boxes. These drones are purchased, handled, and restocked in the same manner as if they belonged to the ship or base and remain with the unit even if all fighters are transferred off. Note that there are no ``reloads'' for this drone storage, so each drone must be selected individually. As such, carrier-stored explosive drones for fighters may be purchased at half-price. Type-D plasma canisters for fighters also follow these rules.
As technology progresses, drone speeds increase. You may upgrade your drone-armed ships and bases by purchasing individual drones (or as a single new load) at full price.
Special drones (any drone without explosive modules or containing any non-explosive, non-armour modules) are purchased apart from drone loads, and are then assigned to their units. They replace an appropriate number of spaces of drones either in the racks or in the reloads, or may be stored in Cargo boxes. When the ship restocks its drones, expended special drones are replaced with the drones originally in their space (if any).
Ships purchasing Type-IIIXX (long-range bombardment) drones pay full value for the first load every time the drones are restocked. To calculate this, divide all drones that need replacing by the number of loads, mutiply by the cost of a single Type-IIIXX drone at the desired speed, and round up.
T-bomb racks on W- and Y-era ships cost 4EP per space installed, and replacements are free when the ship restocks. Middle Years ships and later (including Y-era national guard upgrades) include a full load of t-bombs in their purchase price, and replacements are 1EP per mine when the ship restocks. Dummy t-bombs are always free, but a ship may not restock more dummies than it has real t-bombs.
Ammunition on ships may be replaced by freighter. The cargo holds must be modified to hold them, however, as parts of them are very fragile. This costs 1EP for every 10 cargo points transported this way (round up), and must be paid each time consumables are loaded onto the freighter. The number and type of ammunition must be specified, down to the type and size of drones. These consumables may only be used to replace expended ordinance on a one-for-one basis (ie. a ship reloaded this way may not end up with a different load than its purchased load). Exception: different drones may be purchased at full price and loaded on ships this way, using the same rules as special drones. All resupply is immediate in game time unless a scenario begins specifically during the resupply process.