In 99 Nights in the Forest, the Alien class introduces a unique sci-fi twist to the survival horror experience. As one of the high-tier classes, the Alien brings advanced weaponry, exclusive mechanics, and a connection to the mysterious extraterrestrial events that unfold on the fourth night. This guide breaks down everything you need to know about the Alien class, how to summon aliens, access the mothership, and make the most of alien tech.

Aliens are a hostile Entity group in 99 Nights in the Forest. They will attack players on sight and can become a real threat once they begin appearing. They play a major role in the alien event and the powerful class tied to their technology.
Aliens begin to appear after Night 4 when a major UFO event takes place. Here's how it happens:
The Mothership serves as the alien stronghold and is accessed through a specific crashed UFO. Here's how to enter:
Once inside, you'll encounter Elite Gray Aliens:
You first encounter alien-related lore at the start of the game:
Interestingly, in the Alien update cutscene, aliens are not hostile toward cultists or deer, possibly hinting at an alliance.
| Class Name | Rarity | In-game Cost | Starting Equipment | Unique Skills | Level-Up Requirements |
|---|---|---|---|---|---|
| Alien | ★★★ | 100 Diamonds | Raygun | Level 1: Night vision boost; slows sprint while Alien Tech recharging Level 2: Faster Alien Tech recharge Level 3: Sprint faster when Alien Tech fully charged | Defeat enemies using Alien Tech |
To unlock the Alien class, you'll need 100 Diamonds, which can be earned through gameplay or bought in-game. If you're looking for a shortcut, consider checking sites that offer safe and fast options to buy 99 Nights in the Forest Diamonds to accelerate your progress.
| Class Name | Rarity | Cost | Starting Equipment | Unique Skills | Level-Up Requirements |
|---|---|---|---|---|---|
| Camper | ★ | 10 Diamonds | Flashlight | Lvl 1: -10% hunger drain Lvl 2: Better night vision Lvl 3: Spawn with Stew | Cook food, burn wood |
| Scavenger | ★★ | 25 Diamonds (Starter Pack) | None | Lvl 1: +2 sack space Lvl 2: +20% chest open speed Lvl 3: Bonus scrap from chests | Travel distance, scrap items |
| Medic | ★★ | 40 Diamonds (Starter Pack) | 2 Bandages | Lvl 1: +5 faster revives Lvl 2: Revives restore more HP/Hunger Lvl 3: Start with Medkit | Collect meds, revive allies |
| Cook | ★★ | 40 Diamonds | Seasoning | Lvl 1: Craft seasoned food Lvl 2: Crockpot cooks 20% faster Lvl 3: 25% chance for Hearty Stew | Cook food, stew-making |
| Hunter | ★★ | 40 Diamonds | 2 Bear Traps | Lvl 1: Increased meat drop Lvl 2: Higher pelt drop Lvl 3: Extra wolf pelt trade | Kill animals (rabbits, wolves) |
| Decorator | ★★ | 40 Diamonds | Hammer | Lvl 1: +1 item from Furniture Trader Lvl 2: Trader always on map Lvl 3: -25% furniture cost | Buy from Furniture Trader |
| Ranger | ★★★ | 70 Diamonds | Flashlight, Revolver, 18–30 ammo | Lvl 1: Start with 18 ammo Lvl 2: 10% ammo refund chance Lvl 3: Start with 30 ammo | Rescue kids, defeat enemies |
| Lumberjack | ★★★ | 70 Diamonds | Good Axe | Lvl 1: 20% bonus log chance Lvl 2: 25% double sapling drop Lvl 3: Extra bonus logs | Chop trees, plant saplings |
| Brawler | ★★★ | 100 Diamonds | Leather Body Armor | Lvl 1: +20% HP, +30% melee dmg, no ranged Lvl 2: Faster HP regen Lvl 3: 5% block chance | Take damage, melee fights |
| Alien | ★★★ | 100 Diamonds | Raygun | Lvl 1: Better night vision, slower sprint if tech low Lvl 2: Tech recharges faster Lvl 3: Faster sprint if full | Defeat enemies with Alien Tech |
| Assassin | ★★★★★ | 500 Diamonds | Katana, 120 Throwing Knives | Lvl 1: +10% sprint, -15% HP, +5% knife spawn Lvl 2: First-hit crit chance Lvl 3: +10% knife chest drop | Travel distance, no-damage kills |
| Cyborg | ★★★★★ | 600 Diamonds | Alien Armor, Laser Cannon | Lvl 1: Overheat = damage/armor loss Lvl 2: Healing buff at full charge Lvl 3: Kills restore Tech energy | Alien Tech kills, AoE damage |