| Martha "Big Mamma" Potterson | – | NPCVendorQuest | VendorSpawns |
| Martin McMichael | – | NPCVendorQuest | VendorSpawns |
| Mary Jane Greenpuff | – | NPCQuest | VendorSpawns |
| Mary Jane Greenpuff | – | NPCQuest | VendorSpawns |
 Mask Green | – | | Spawns |
 Mask Orange Horns | – | | Spawns |
 Mask Pink Bird | – | | Spawns |
| Mask Vase 01 | – | | Spawns |
| Mask Vase 02 | – | | Spawns |
| Mask Vase 03 | – | | Spawns |
| Matriarch Archosaur | 19 | Mob | |
| Maverick "Mav" Gritt | – | NPCQuest | VendorSpawns |
| Max Starchaser | – | NPCQuest | VendorSpawns |
| Maxwell Coffee | – | | Spawns |
| Maxwell Sterling | – | NPCQuest | VendorSpawns |
| Mean Scammer | 3 | NPCMobQuest | |
 Megabotan-7 | – | NPC | Spawns |
| Meldoc | – | Vendor | Vendor |
 Memory Core | – | | Spawns |
 Message | – | | Spawns |
| Metal Vein | – | | |
| Michael | 3 | NPCMobQuest | |
| Microwave Madness Page 1 | – | | Spawns |
| Microwave Madness Page 2 | – | | Spawns |
| Microwave Madness Page 3 | – | | Spawns |
| Microwave Madness Page 4 | – | | Spawns |
| Microwave Madness Page 5 | – | | Spawns |
| Mighty Troll | 19 | Mob | |
 Mighty Troll | 19 | Mob | |
| Mighty Troll | 19 | Mob | |
| Miguel | – | NPCVendor | Vendor |
| Miguel "El Caballo" Rodriguez | – | NPCVendor | VendorSpawns |
| Miguel Hinton | – | NPC | Vendor |
| Mihai Fraser | – | NPC | Vendor |
 Militia officer | – | NPC | |
 Mine Active 01 | – | | Spawns |
| Mine Active 02 | – | | Spawns |
| Mine Active 03 | – | | Spawns |
| Mine Active 04 | – | | Spawns |
| Mine Active 05 | – | | Spawns |
| Mine Active 06 | – | | Spawns |
| Mine Active 07 | – | | Spawns |
 Mine Inactive 01 | – | | Spawns |
| Mine Inactive 02 | – | | Spawns |
| Mine Inactive 03 | – | | Spawns |
| Mine Inactive 04 | – | | Spawns |
| Mine Inactive 05 | – | | Spawns |
| Mine Inactive 06 | – | | Spawns |
| Mine Inactive 07 | – | | Spawns |
| Miner DO NOT SPAWN VIA ADMIN | – | Chest | |