Mortal Shell 2 Obsidian Hammer
Obsidian Hammer in Mortal Shell 2: Rebuilt a week after launch: the Week 1 Update gave it a full balance pass and says it 'now hits substantially harder'. Any damage…
Last verified
Short answer
Obsidian Hammer is one of the thirteen Mortal Shell 2 weapons confirmed by a Valve “Unlock” achievement — Stop - Hammer Time, unlocked by 33.9% of players. Rebuilt a week after launch: the Week 1 Update gave it a full balance pass and says it “now hits substantially harder”. Any damage impression formed in the first nine days is out of date.

Confirmed facts
| Detail | Value |
|---|---|
| Unlock achievement | Stop - Hammer Time |
| Global unlock rate | 33.9% |
| Weapon / Sidearm split | Not published |
| Acquisition | Not published. |
What the patches changed
- Received a full balance pass in the Week 1 Update and “now hits substantially harder” — the strongest buff language used for any weapon.
- A heavy weapon, so it also received the Week 1 poise and damage pass applied to heavy weapons generally.
- No damage values or scaling published, before or after the buff.
Reading the unlock rate
Valve publishes the global achievement rate, which is the only population data available for Obsidian Hammer. At 33.9%, it is one of the rarer unlocks on the list — consistent with a late, optional, or well-hidden acquisition.