Vesper's Host Solo Flawless Boost

• Solo Flawless Completion: every encounter alone and without dying, the condition of Perfect Solitude.
• Solo Non-Flawless Completion: every encounter alone with deaths allowed, which fits Alone in the Dark.
• Solo Non-Flawless Last Boss Only: the closing encounter played alone.
• Add Ice Breaker: the dungeon's Exotic Sniper Rifle is added to the order.

A booster usually starts within about 1 hour, and a full solo run takes about 6 hours.

Alone in the Dark is one of the ten triumphs in the Vesper's Host seal, whose title is Unleashed; Perfect Solitude is a separate record outside the seal. The loot list of the dungeon holds Ice Breaker, four VS Legendary weapons (two Grenade Launchers, a Fusion Rifle and an Auto Rifle), the Exotic vehicle VS Tech Sledge and the Spacewalk armor for all three classes. The station is also home to the Rogue Network quest, which starts after a clear on any difficulty.

• The Final Shape Dungeon Key on the account. Dungeon Keys are part of Destiny 2: The Collection or sold in Eververse.
• An empty fireteam for the run: both solo triumphs count one Guardian in the activity.

What happens after a death in a flawless attempt?

The flawless condition is broken, so the attempt starts over from the beginning until a deathless solo clear is on the account.

Does the last-boss option give a solo triumph?

No. It covers the closing encounter played alone, while both solo triumphs ask for every encounter of the dungeon.