Fossilfuel

Fossilfuel

Fossilfuel

28 achievements(19 rare)

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ACHIEVEMENTS (21)

Welcome to Sierra

Welcome to Sierra

Start your day at the Sierra Research Institute.

93.5%

First Encounter

First Encounter

Meet Utahraptor.

89.4%

Build your headlamp

Build your headlamp

Land of the blind no more!

68.6%

Get to administration

Get to administration

You have escaped the lower sub-level of Sierra.

18.4%

Titanoboa

Titanoboa

Defeat Titanoboa.

16.1%

Laboratory

Laboratory

Make it to the Sierra laboratory.

12.1%

Playing with Power

Playing with Power

Enter the Power Plant.

11.6%

Hold on to your butts

Hold on to your butts

Restore the sub-level power.

9.0%

Openworld

Openworld

Get to the surface of the Great Sitkin Island.

8.5%

AZ-5

AZ-5

Stabilize the Nuclear Reactor.

7.4%

Eight Leg Freak

Eight Leg Freak

Defeat the Queen bug.

6.9%

Allosaurus

Allosaurus

Defeat an Allosaurus.

6.7%

Making Friends

Making Friends

Get to know some of the scientist.

5.4%

3.6 Roentgen

3.6 Roentgen

Overload the Nuclear Reactor.

5.2%

Game over man!

Game over man!

Make a last stand with the other survivors.

3.9%

Freak'in laser beams

Freak'in laser beams

Get the Focus Beam.

3.3%

To Serve Man

To Serve Man

Unleash bugs onto the soldiers.

2.7%

Event Horizon

Event Horizon

Find the gravity grenade, "Black Hole" gun.

2.3%

Hardcore

Hardcore

Beat the game on the hardest setting.

1.8%

Judo-Chop!

Judo-Chop!

Snap a neck.

1.6%

Super Hardcore

Super Hardcore

Beat the game on hard, and get an S rank.

1.1%

HIDDEN ACHIEVEMENTS

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7 hidden achievements

Details for these achievements will be revealed once you've unlocked them

Click to view all hidden achievements