Comparison
Resurgence versus SAS 4
SAS: Zombie Assault 4 is the free 2D game. Zombie Assault: Resurgence is the paid 3D sequel. Both use Assault, Heavy, and Medic, and both offer 1–4 player online co-op. Resurgence adds two specializations per class. SAS 4 is the one with PvP events. The storefront records do not advertise progression transfer.
| Resurgence | SAS 4 | |
|---|---|---|
| Release | 28 Oct 2026 | iOS 23 Oct 2014 · Steam 16 Oct 2017 |
| Price | $14.99 list, phones $9.99, no launch in-app shop | Free, with purchases inside the game |
| View | 3D top-down | 2D top-down |
| Classes | 3, each with 2 specializations | 3: Assault, Heavy, Medic |
| Co-op | 1–4 online | 1–4 online, plus PvP events such as Last Man Standing |
| Weapons | Official line: 60+ primary and secondary | Publisher line: 160+ guns and armor together |
| Loot loop | Strongbox, craft, mod, vendor, power weapon | Strongbox, augment, upgrades |
| Saves | Its own app, 2747660 | Its own app, 678800 |
Where SAS 4 still wins the argument
It is free to start. The catalog, counted by the publisher as guns plus armor, is the larger number. PvP events exist there and are absent from Resurgence's store categories. Years of builds and guides sit behind it. Players who write 'SAS 4 is better' on the Resurgence board are usually talking about that pile of modes and the price.
Where Resurgence is the different product
The camera is 3D. The skill posts describe upgrades and specializations SAS 4's three classes do not use. Launch has no in-app shop, which is the opposite of SAS 4's model. Gun feel is the thing the kinder Steam reviews mention first.


Pick SAS 4 if you want a free, older, wider mode list. Pick Resurgence if you want the 3D sequel and will pay. No save-transfer feature is advertised in these records. Names are sorted out on is this SAS 5?.
Questions
Is SAS 4 better than Resurgence?
They are different deals. SAS 4 is free, 2D, and has PvP events. Resurgence is paid, 3D, and has specializations. Steam's launch reviews were Mixed.
Do both games have the same classes?
Both have Assault, Heavy, and Medic. Resurgence adds two specializations on each.
Can I bring my SAS 4 weapons over?
The store records do not advertise transferring SAS 4 weapons into Resurgence.
Related
Sources
- SAS 4 App Store original release date — checked 2026-11-02
- Steam app 2747660 — checked 2026-11-02
- Steam app 678800 — checked 2026-11-02
- Dev Diary 14 — checked 2026-11-02