Unlockable list for Ace Combat X: Skies of Deception.
| Unlockable: | How to Unlock: |
| Ace difficulty | Successfully complete the game under the hard difficulty setting. |
| ADF-01 Falken | Successfully complete SP stage Operation X. |
| Bronze Ace Medal | Destroy 200 Enemies |
| Expert Marksman Medal | Destroy 50 Aircraft with Guns |
| Eye of the Storm Medal | Defeat the Gleipnir |
| Freedom Tower Medal | Liberate Griswall |
| Gold Ace Medal | Destroy 1000 Enemies |
| Land Guardian Medal | Keep allied casualties at Stand Canyon to a minimum |
| Mark of the Vioarr Medal | Defeat the Fefnir |
| Marksman Medal | Destroy 5 Aircraft with Guns |
| Sharpshooter Medal | Destroy 15 Aircraft with Guns |
| Silver Ace Medal | Destroy 500 Enemies |
| SP stage Operation X | Successfully complete all missions and mission branches. |
| Stage 03B Captive City | Successfully complete Stage 05 or 06 before Stage 04. |
| Stage 07C Time Limit | Successfully complete Stages 07, 09, 11, and 07C in that order. |
| Stage 12C Wild Card | Successfully complete Stages 07, 08, 10, 09, and 12C in that order. |
| XFA-27 | Successfully complete Mission 03B. |
Special parts unlockable for the original planes, specific only to each plane. S-rank specific missions with specific plane.
| Unlockable: | How to Unlock: |
| Apalis: Earth Shaker / Cockpit / $34200 | S-rank mission 03A with Apalis |
| Cariburn: Sylph Wing / Wing / $55600 | S-rank mission 01 with Cariburn |
| Falken: Laser Extender / Weapon / $69800 | S-rank mission 10A with Falken |
| Forneus: Diffusion Coat / Armor /$49600 | S-rank mission 09A with Forneus |
| Fregata: Hudra Engine / Engine/ $51600 | S-rank mission 02 with Fregata |
| X-02: Long Range MSSL / Weapon / $45100 | S-rank mission 13A with X-02 |
| XFA-27: Scarface MBS / Weapon / $76500 | S-rank mission 04B with XFA-27 |
Beat Hard mode.
