Alien Hallway

Alien Hallway

20 achievements
RareƗ8
UncommonƗ4
CommonƗ8

About Alien Hallway's achievements

Alien Hallway has 20 Steam achievements. The rarest is "Professional", earned by just 17.8% of players. Across 4 SteamVault hunters who reached 100%, full completion takes a median of about 17 hours. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement
17.8%
of players earned "Professional"
SteamVault 100%s
4
members fully completed it
Median to 100%
17h
typical time to full completion

Community Ratings

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Difficultyā€”
Easy ā†’ Brutal
Enjoymentā€”
Meh ā†’ Loved it
Grindinessā€”
No grind ā†’ Huge grind
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All Alien Hallway achievements

20 achievements
Professional
Professional
Complete the game on extreme level of difficulty
Rare17.8%
Specialist
Specialist
Upgrade one unit till 10th level
Rare22.5%
Perfectionist
Perfectionist
Get 5 stars for all game levels
Rare23.1%
Extreme
Extreme
Win the battle with lower than 50% health level of your base
Rare23.6%
Great commander
Great commander
Upgrade all friendly units till 4th level
Rare25.4%
Master of defense
Master of defense
Upgrade the base till 5th level
Rare26.7%
Invincible
Invincible
Complete any level of the last planet without loss of friendly units
Rare28.6%
Air force
Air force
Upgrade airstrike till 7th level
Rare29.1%
Liberator
Liberator
Complete all game levels
Uncommon36.7%
Air supply
Air supply
Use airstrike 100 times
Uncommon39.2%
Phantom warrior
Phantom warrior
Have 10 Snipers simultaneously present during the battle
Uncommon40.9%
Elite only!
Elite only!
Call for 5 Heavy laser gunners during the battle
Uncommon44.1%
Mean
Mean
Accumulate 1000 energy units during the battle (can't be achieved on "Resources refill" and "Final Step" levels)
Common50.6%
Hell
Hell
Call for 20 Flamethrowers during the battle
Common54.0%
Fire in the hole
Fire in the hole
Throw 300 grenades
Common59.4%
Good start
Good start
Liberate the first planet
Common63.8%
Bloodbath
Bloodbath
Kill 1000 aliens
Common66.9%
Armada
Armada
Call for 50 friendly units
Common70.3%
Numerical Superiority
Numerical Superiority
Call for 20 friendly units during the battle
Common71.7%
Blood Lust
Blood Lust
Kill 100 aliens
Common81.4%