Survivor Squad is a top down game where you move your survivors from one area to the next, clearing out hordes of zombies while striving to find the hidden laboratories that host the cure for "the infected". Part of your play, besides killing everything that attacks you, is finding other survivors, searching buildings to gather supplies, and crafting items to better equip your team.
You can choose to clear areas with a team of 1-4 survivors at a time, and as the game progresses, there are certain harsh situations you might find yourself in, such as having to diffuse a bomb while being trapped in a building or having to quickly find the switch that turns off the alarm before being swarmed by zombies, meaning you will occasionally need fast reactions so as not to get overwhelmed. Despite what I have read on here, shooting everything in range is not always a viable option (especially when a horde is passing by) and even though the strategic decisions you get to make in this game do not have much depth, there is always the occasional benefit from choosing to be stealthy or using a gadget.
Unfortunately, the game could use improvement as it has several shortcomings. The art style seems poorly made, there are several situations where your movement gets glitchy, the audio is bad, and the game depth is not very satisfying. Overall the basic mechanics are there and are viable, but it seems like they could all use some polishing to make this game good. Despite its shortcomings though, I will not thwart you away from this game as it could be a pleasant casual game for those who are not looking for something complex. I will instead recommend that you watch some gameplay videos before deciding to play it.