Semi-Auto Shotgun

Details

At 20 weight each it eats carry capacity fast, so bring a mount or park a chest nearby. At 121,200 gold it is worth real money to a merchant.

Semi-Auto Shotgun Crafting Recipe

Refined Ingot×75

Polymer×30

Carbon Fiber×15

Ancient Civilization Parts×2

What it really costs, once every sub-recipe is expanded

Coal×150Ore×150Wood×150High Quality Pal Oil×60Sulfur×30Flame Organ×15Ancient Civilization Parts×2

Crafting it takes 122 materials across 4 types, and the bottleneck is almost always the 75× requirement — line that up first and the rest follows.

Where to Find Semi-Auto Shotgun

The recipe is not on the Technology tree — it is locked behind a schematic you have to find first. The best single source is sea base enemy camp boss stashes in the Snowfields at 18.4% per container, and the table below lists every tier and where each one drops.

Every Tier of Semi-Auto Shotgun

The same piece exists at 5 rarities, and the gap is not cosmetic: attack runs 195 to 282, a 1.4x swing. Which one you end up with is decided by the rarity of the schematic you built from, not by the recipe — so a legendary copy of this is worth more than the next item up built from a common one.

Ammunition Semi-Auto Shotgun Uses

Semi-Auto Shotgun fires Shotgun Shell, and nothing else — running dry mid-fight is the usual way this weapon lets you down, so keep the recipe unlocked before you rely on it.

Ammo	Yield	Craft cost
Shotgun Shell	×10	Refined Ingot ×2, Gunpowder ×3

Schematics That Unlock Semi-Auto Shotgun

The Technology tree hands you the plain Semi-Auto Shotgun at level 47 for 4 Technology points, but nothing above that base version — the rarer builds are schematic-only. One schematic grants the recipe, and they are world loot — chests, boss Pals and the late-game pools — rather than anything you research. Higher-rarity copies of the same schematic raise the quality of what you end up crafting.

Fastest route. The fastest route is treasure map digs (tier 3), and the reason is the ladder rather than the top rung: that pool stocks every tier, so the common copies it hands you fuse upward into the one you want. Counting them, a top-tier Semi-Auto Shotgun schematic works out at roughly 33 containers against the 59 the 4★ drop rate alone suggests. Spare low tiers are progress, not clutter. Schematics fuse five-to-one, so a lower tier with better odds can beat the top tier outright. Counts are containers of that source, not time.

Schematic	Rarity	Where it comes from
Semi-Auto Shotgun Schematic 2	2★	Snowfields sea base camp stashes, Treasure map digs (tier 3), Sakurajima camp loot +4 more — best 18.4% (grade 5/6) · Supply drops in the Mount Obsidian (1.69%)

Alternatives and Upgrades

Step up from here and you get Semi-Auto Shotgun at 253 attack; step down and it is Core Eject Shotgun at 230. That gap is the honest measure of whether an upgrade is worth the materials right now.

Semi-Auto Shotgun253Core Eject Shotgun230

Other shotguns at a similar tier, for when you want to weigh this against the rest of its class:

Pump-Action ShotgunDouble-Barreled ShotgunMakeshift ShotgunCore Eject ShotgunPump-Action ShotgunSemi-Auto ShotgunSemi-Auto ShotgunPump-Action ShotgunDouble-Barreled ShotgunCore Eject ShotgunDouble-Barreled ShotgunMakeshift Shotgun