Mortal Shell 2 Night Mode — Gloombound Flame & Thestus
Quick answer: Night Mode is Mortal Shell 2's reversible hard difficulty. Find the Gloombound Flame, take it to Thestus at Marrow Keep, and ask him to call the night. Enemies hit harder and drop more Gloom and gold. You can switch it off the same way.

Official promotional screenshot: Steam / Cold Symmetry / Playstack
How to unlock Night Mode
- Reach Fainweald and activate Widow's Overlook.
- Look for the Gloombound Flame on the early Fainweald route — community guides place it near the Great Arbiter of Flesh arena and the jump gate toward Outskirts of Nochte.
- Return to Marrow Keep and use the Flame. That summons Thestus.
- Speak to Thestus and confirm that you want to call the night.
You can return to Thestus later and switch back to standard day. Night Mode is not a permanent New Game flag.
What changes at night
- The overworld darkens. Enemies become faster and stronger.
- Gloom and gold drops improve, which is why some players farm in Night Mode after they can survive it.
- A Night Mode vendor/route opens content you will not see in day — including the Seedbearer's Scripture that launch guides recommend before Zmey because of Cosmic Disease.
- Slayer Seal is the opposite lever: easier combat, reported achievement lock. Do not confuse the two.
Night Mode is optional for the main ending. It is not optional if you want Seedbearer's Scripture before the final dragon fight. See the Zmey guide.
When to turn it on
Wait until you have a permanent Shell, a weapon you can land consistently, and upgraded Mether's Pulse. Turning Night Mode on in the first hour is a common way to feel the game is unfair. Turning it on after Magdalena, when you want more Gloom per loop, is the more common launch-week pattern.
Community Night Mode overview
Unofficial player video. Toggle steps on this page follow IGN and GameSpot difficulty guides.
Related guides
Difficulty & Slayer Seal · Seals · Gloom farming · Zmey and Seedbearer's Scripture
Evidence: Night Mode as a toggleable hard mode is described by IGN, GameSpot, and AltChar launch guides. The Gloombound Flame pickup near the Great Arbiter of Flesh / jump-gate route is a community-reported landmark, not an official map pin. Verified August 23, 2026.