When does SAS: Zombie Assault 4 get good?

Give it 1 hour. In the first 2 hours 1 in 4 reviews are negative (25%); after 7h it's 1 in 8 (12%). Fully opens up by hour 2.

All games

ActionRPGFree To Play

SAS: Zombie Assault 4

Oct 16, 2017 Steam: Very Positive

Give it 1 hour

Gets good by 1h almost every game dips in hours 2–3

Fully opens up by 2h rated like by long-time players

Started playing 85% of owners

Steam reviews 86% positive of 9,722

What the data shows

In the first 2 hours 1 in 4 reviews are negative (25%); after 7h it's 1 in 8 (12%).
Fully opens up by hour 2.
The game has no story achievements, so drop-off points can't be measured.
85% of owners got the first achievement.

When it gets good

Share of positive reviews by how many hours the reviewer had played when writing the review.

before it gets good opening up fully opened up

Based on all 9,794 Steam reviews in every language. Median playtime in a sample of 300 reviews: 12.4h for positive, 2.8h for negative. Almost every game is rated lower in the first 2–3 hours: that window includes refunds and quick first impressions. What matters is how deep the dip is and how fast the game recovers.

Where players quit

Share of players who started the game and reached each story milestone. 100% is the most common achievement (85.2% of owners), so people who bought the game and never launched it don't count.

This game has no story achievements, so we can't tell where players quit.

All achievements (64)

story milestone ending side

Level Up Reach level 2 with one character 100%
Cleanup Slow 5,000 zombies with the Biocleanse Bomb skill (Medic class) 81%
For Me Open 10 Strongboxes 60%
Augmented Add your first augment to any weapon or armor piece 60%
Impounded Kill 5 or more zombies with a single car explosion 46%
Goes Up to 11 Reach level 11 with one character 32%
Upgraded Fill any augmentation slot up to grade 5 on any single weapon or armor piece 32%
NLL Complete Last Stand without a single zombie getting through 31%
Hero Rescue every single survivor on the Survivors map 25%
Mo Betta Make a total of 50 augmentations across all weapon and armor pieces 22%
None Shall Pass Defeat all zombies on Onslaught without allowing either of the ramp doors to fall 21%
Boxer Open 100 Strongboxes 19%
You Shamble, I Scramble Pulverize 5,000 Shamblers 18%
Complete Set Encounter and destroy 1 of each zombie, elite, and boss type 16%
Loose Change Pick up $1,000,000 in SAS4 Cash loot drops 14%
Stalkee Obliterate 5,000 Stalkers 14%
Top 10 Fill any augmentation slot up to grade 10 on any single weapon or armor piece 13%
You Have No Secrets Find all hidden stashes in the the original 7 maps 13%
Precision Do not open any pods besides the boss pod 13%
Run, Zombie, Run Kneecap 5,000 Runners 12%
My Little Friend Kill 5,000 zombies using turrets 11%
Oh Spit Chew up 5,000 Spitters 11%
Redecorator Destroy every breakable object in the VIP's mansion 9.5%
Liposuction Drop 5,000 Bloaters 8.6%
Shields Down Bash through 5,000 Shielders 8.2%
Hard Line Complete Last Stand without letting a single zombie past the first barrier 8.1%
Not Today Resist 1,000 zombie attacks using the Die Another Day skill (Heavy class) 8.0%
Drift King Flatten 20 zombies with a single drift 7.4%
50 Cal Reach level 50 with one character 6.7%
Hit and Run Crush a boss zombie while driving a vehicle 6.1%
Pistol Whipped Bash 1,000 zombies using the Close Quarters Combat skill (Assault class) 4.1%
Test Driven Level up an Assault, Medic, and Heavy character to level 10 4.0%
Transporter Evacuate the VIP without him taking any damage 3.9%
Quicksilver Apply 25 total skill points on a single character between Fast Reload and Fast Movement (at least 5 points in each) 3.6%
Full Stables Hold a level 20 character in each of the 3 character slots 3.3%
Necrophobe Snuff 1,000 Necrosis bosses along with all 3 children 3.3%
Weapon Specialist Make a total of 1,000 augmentations across all weapons 2.9%
Zero Allow every survivor to, well, not survive 2.6%
Field Commander Wipe out 10,000 zombies with the Assault Team skill (Assault class) 2.3%
Zombie Reaper Personally curb stomp 1,000,000 zombies 2.3%
Recycler Sell 5,000 weapons or gear pieces 2.3%
Tank Apply 25 total skill points on a single character between Toughness and Body Armor Expert (at least 5 points in each) 2.3%
Grenadier Kill 5,000 zombies using grenades 2.2%
Armor Specialist Make a total of 1,000 augmentations across all armor pieces 2.0%
Zero Casualties Complete Power Out without any player on a 4 player team taking any damage from the central turrets 2.0%
Eco Warrior Complete Recovery without ever entering a vehicle 2.0%
Devastation Eviscerate 1,000 Devastators 1.9%
Hacked Terminate 1,000 Zombie Mechs 1.9%
Zombie Heal Thyself Heal to death 10,000 zombies with the Zombie Antidote skill (Medic class) 1.9%
Fireman Extinguish 1,000 Wickers 1.8%
Hurl De-worm 1,000 Regurgitators 1.8%
Regenerator Apply 25 total skill points on a single character between Health Regen and Energy Regen (at least 5 points in each) 1.8%
Team Sprint Complete Vaccine with a 4 player team where you extract the vaccine and get all 4 players on the ship in less than 5 minutes 1.6%
Most Toys Wins Open 10,000 Strongboxes 1.6%
Zombies Go Boom Vaporize 10,000 zombies with the Aerial Bombardment skill (Heavy Class) 1.5%
Map Master - Pods Successfully defeat the pods 1,000 times 1.4%
Map Master Last Stand Make 1,000 successful stands 1.3%
Map Master Onslaught Successfully defend the ship 1,000 times 1.3%
Map Master Power Out Successfully complete Power Out 1,000 times 1.3%
Map Master - Survivors Survive Survivors 1,000 times 1.3%
Map Master - VIP Successfully escort the whiny VIP 1,000 times 1.3%
Map Master - Vaccine Successfully extract the vaccine 1,000 times 1.3%
Map Champion - Recovery Successfully complete Recovery 100 times 0.8%
Vehicular Manslaughter Squish 5,000 zombies while driving a vehicle 0.8%

Steam page Updated: 2026-10-19.