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D2 lostcoast

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Lost Coast
D2 lostcoast.jpg
General Map Info
Game Half-Life 2
Chapter Lost Coast
Fastest time New Engine
3.500s by raintnt

Old Engine
15.155s by raintnt

Map navigation

Half-Life 2: Lost Coast is a technology demo showing off the Source engine's HDR rendering capabilities. The town of St. Olga, where the game is set, was originally slated to take place between the levels Highway 17 and Sandtraps, but was dropped. Lost Coast was released on October 27, 2005 as a free download to all owners of Half-Life 2. Half-Life 2: Lost Coast was the only game to not get updated to use OrangeBox Engine until Steampipe.


The fastest way to beat the game is to destroy a wooden boat and use it's gibs for Flying. There's a trigger just above the cart that you need to hit, then the game will think it's finished, and will trigger the ending sequence as soon as you're back down at the Fisherman.
Use one of the Landing methods to survive the fall.

No Flying

After you get up, quickly Bunnyhop to the gate and do a Gravity Jump using a supply crate nearby to get over the gate.
When you reach the wooden stairs, be careful. They're supposed to be destroyed on a trigger, but you can avoid that by catching the Orb using the Gravity Gun and safely climb up. Continue climbing up and once you're in St. Olga's yard, go near the Church's entrance, but don't enter it. Instead, you'll end up in a place surrounded by fences. Using any object, do a Gravity Jump to get over the fences.
From there, do a Damage Boost using RPG, SMG's Secondary Fire or Grenade to reach the cart and fall down to the Fisherman.


You can also do a Damage Boost over the wooden fence in the end of the yard. Once you get over it, it'll trigger the Chopper battle, but it's not necessary to fight it - you can simply get down to the cart and fall down.


  • The Fisherman does not have a physics model and, if killed, he will either crash the game or he will do a reference pose.
  • The Combine Gunship can be found by no-clipping before the Hunter Chopper attacks.
  • The Hunter-Chopper that opposes the player towards the end of the demo behaves and even sounds like the Combine Gunship; it shoots down incoming rockets and its pulse gun is much more accurate.
  • The Fisherman is the first Source character whose face was made from scratch without a real-life model.
  • In the Source SDK Base, a flyby of this level can be launched as a video stress test.
  • The shell launcher in the Church, despite its printed warning sign stating that its moving parts can crush objects, can be disabled with any available physics object small enough to pick up and fit into it. Oddly enough, it cannot be destroyed with a grenade or any other weapon.

Known Bugs

  • It is possible to get to the other side of the coast without dying. Instead of climbing up, get down to the rocks and go along the mountain. After you reach the mountain on which the village is built, the leeches trigger has ended at that point, so you can safely swim to the other side.
  • When you disable the shell launcher, the first Chopper should show up and start shooting the church, causing the windows to break. You can shoot RPGs through the window and destroy the Chopper before you leave the building.

See Also

Landing methods
SpeedRunsLive page.

Get Lost Coast

If you own Half-Life 2 on Steam, you can download Lost Coast for free here

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