Alien Hallway

20 achievements

Rare×8

Uncommon×4

Common×8

About Alien Hallway's achievements

Alien Hallway has 20 Steam achievements. The rarest is "Professional", earned by just 17.8% of players. 3 SteamVault members have 100%-completed it so far. 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

members fully completed it

🗺️ Community guides & walkthroughs

Community Ratings

No ratings yet

Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

Want to rate Alien Hallway? Sign in with Steam — one rating per person.

ℹ️Showing global unlock rates. Sign in with Steam to see your personal progress.

All Alien Hallway achievements

20 achievements

Professional

Complete the game on extreme level of difficulty

Rare17.8%

Specialist

Upgrade one unit till 10th level

Rare22.5%

Perfectionist

Get 5 stars for all game levels

Rare23.1%

Extreme

Win the battle with lower than 50% health level of your base

Rare23.5%

Great commander

Upgrade all friendly units till 4th level

Rare25.3%

Master of defense

Upgrade the base till 5th level

Rare26.7%

Invincible

Complete any level of the last planet without loss of friendly units

Rare28.6%

Air force

Upgrade airstrike till 7th level

Rare29.1%

Liberator

Complete all game levels

Uncommon36.7%

Air supply

Use airstrike 100 times

Uncommon39.2%

Phantom warrior

Have 10 Snipers simultaneously present during the battle

Uncommon40.9%

Elite only!

Call for 5 Heavy laser gunners during the battle

Uncommon44.1%

Mean

Accumulate 1000 energy units during the battle (can't be achieved on "Resources refill" and "Final Step" levels)

Common50.6%

Hell

Call for 20 Flamethrowers during the battle

Common54.0%

Fire in the hole

Throw 300 grenades

Common59.4%

Good start

Liberate the first planet

Common63.8%

Bloodbath

Kill 1000 aliens

Common67.0%

Armada

Call for 50 friendly units

Common70.3%

Numerical Superiority

Call for 20 friendly units during the battle

Common71.7%

Blood Lust

Kill 100 aliens

Common81.4%