The Alien Boss questline in Storage Hunters is a 30-quest chain added with the Alien Part 2 update, and its closing quests are the most demanding tasks in the game. Finishing them means winning hundreds of Alien Garage 4 auctions and pulling some of the rarest alien loot in the pool. Real_Cruxy and Jaden (Jadenboss5142) cleared the full chain over roughly 72 hours of alternating shifts, which is the clearest picture of what the endgame actually asks for.
Quick answer: The final three quests (26, 27, and 30) require winning 105, 120, and 140 Alien Garage 4 auctions plus specific rare-item finds, and they pay only potions, Gems, and Alien Tokens — no exclusive vehicles, badges, or titles.
Alien Boss questline structure
The chain runs 30 quests deep and is handed out by the Alien Boss NPC. Each quest layers on more Alien Garage 4 auction wins and rarer item requirements, so progress slows sharply toward the end. Because the objectives stack, the last stretch is where nearly all of the grind lives.
Note: In-game quest counters in some footage can read slightly off from the true quest number, so treat the quest name as the reliable identifier rather than a mid-screen count.
Final quest requirements
The closing quests share the same core demand of winning a large batch of Alien Garage 4 auctions, then add rare alien item finds on top. Quest 30 also switches from ordinary rarity tiers to Limited items, which is the toughest filter in the set.
| Quest | Auctions to win | Item finds |
|---|---|---|
| 26 — Legendary Hoard | 105 Alien Garage 4 | 3 Legendary Alien items |
| 27 — Close Encounter | 120 Alien Garage 4 | 6 Probed alien items, 2 Extraterrestrial alien items |
| 30 — The Mothership Vault | 140 Alien Garage 4 | 2 Mythical Alien Limited items, 55 Alien Limited items |
Rewards for the final quests
The payouts stay modest across all three quests. You get consumable potions, a small Gem drop, and Alien Tokens, plus a single Certificate of Alien Authenticity at the very end. None of these are unique cosmetics.
| Quest | Rewards |
|---|---|
| 26 — Legendary Hoard | x2 Free Grade Re-Roll Potion, +80 Gems, +45 Alien Tokens |
| 27 — Close Encounter | x2 Alien Luck Potion, +85 Gems, +45 Alien Tokens |
| 30 — The Mothership Vault | x1 Mutator Extractor Potion, x1 Certificate of Alien Authenticity, +90 Gems, +50 Alien Tokens |
What clearing the questline actually costs
The scale of the grind is the real barrier, not any single objective. Because the last quests need item rarities that only appear occasionally, you have to play far more auctions than the listed win counts suggest. The completed run logged the following totals.
| Metric | Value |
|---|---|
| Total Alien Invasion auctions played | 5,259 |
| Continuous grind time | ~72 hours (alternating shifts) |
| Time played (stats screen) | 479h 30m |
| Net Worth | $51M |
Between the two players, Quest 27 alone took another 9 to 10 hours of grinding after Quest 26 was cleared, and Quest 28 — which is the 30th and final quest — was largely completed overnight before the last auction was won.
Is the Alien Boss questline worth finishing?
For most players, the reward-to-effort ratio does not hold up. The final quests pay out basic potions, Gems, and Alien Tokens that you can accumulate through normal play, and the chain never hands over an exclusive vehicle, badge, or title. The Certificate of Alien Authenticity is the only standout item, and it does not change how you play.
If your goal is efficient progress, the Gems tied to standard achievements — such as the 1000 Auctions Won and $1,000,000 Net Worth milestones — deliver comparable currency for far less dedicated grinding. Chase the Alien Boss chain only if completion itself is the reward you want.
You know the chain is finished when the Alien Boss stops offering a follow-up quest after The Mothership Vault, since that objective is the 30th and final step even if a mid-screen counter suggests otherwise. Once its rewards are claimed, the questline is complete with nothing further to unlock from that NPC.
