|  | Nuclide
    Software Development Kit for id Technology (BETA) | 
Part of the menu progs (menu.dat).  
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Part of the menu progs (menu.dat). 
| Topics | |
| Achievements | |
| Achievements, unlockables API reference. | |
| ActivityPub | |
| ActivityPub social networking integration. | |
| Server Error Message Query | |
| Retrieve server error messages, reasons etc. | |
| Game Library | |
| Locally-installed games, modification control functions. | |
| Localization | |
| Map Library | |
| Locally installed maps/levels control functions. | |
| Master Server | |
| Master Server related functions. | |
| Mod Server | |
| Remotely available modifications, addons control/install functions. | |
| Music | |
| Music looping, stinger related functions. | |
| Rich Presence | |
| Sharing of game state/info for social purposes. | |
| TCP/IP | |
| TCP/IP Networking API. | |
| Update Manager | |
| Game and content update handler functions. | |