Nice, clear concept. I liked growing the zombie swarm. The level design could improve by making more clear good/bad choices and some more penalty for making bad decisions.
Your game is included in one of the timestamps of this playtest recording 

This felt like an incremental game, scratches that itch. I would say that the initial difficulty can be hard, depending on how you choose your path but the next 2 levels were just "travel anywhere you want and increase the horde regardless". Felt like there was no consequence for going without thinking

This was fun! It was pretty easy to figure out what I was supposed to do, although the first punching guy definitely gave me false confidence. I thought the humans were going to be easy pickings and then immediately got humbled lol. The simple art style worked well, and I liked that I could tell I was moving toward more populated areas and eventually a kind of last-stand situation without the game needing to explain it. The zombie movement was the only part that got frustrating for me. Sometimes when someone was near an edge, I couldn’t tell if I was doing something wrong or if the zombies just couldn’t path to them very well. I almost wonder if dumber/more predictable zombie movement would actually feel better for this kind of game. Also, the lose screen having the same cheering as the win screen confused me for a second. Overall I had fun, and I was weirdly committed to getting every pesky human I could find.

Nailed it.

PROS

1. Game was legit fun.  Growing that zombie horde was incredibly satisfying.
2. Sound and music was great.
3. Art and visuals were clear.  Animations were fun to watch.
4. Level design was great.  Clear visuals provided me with opportunities to pick optimal choices and take risks.
   1. Example: I knew the barbed wire and mines would impede progress so I pathed around them until I realized that my horde was big enough to tank some of the hits and chase down the gun-guards.

CONS

1. Zombie responsiveness got a little mixed up with the pathfinding but that could have been my error.

FEEDBACK

1. I wish there were ways to upgrade the zombies.
2. I wish there was more zombie variety or variants.
3. I wish there was more levels and content.
4. More progression.

Conclusion

Easily a top 5 game in the Game Jam in my opinion.  With more work, levels, progression, upgrades and visual polish this easily could be a Steam Game for the RTS genre.  Even better if you can make it multiplayer and color code the zombies for 2 - 4 players to take over a "Mission" or "Challenge Map".

Also this would make for a decent mobile game with one UI joystick on camera pan and the other joystick on the zombie-marker-control.

Very good entry for this Game Jam.  Well done.

Cool Idea would be awesome to see you expand on it 

Easy to understand concept and gameplay. Growing the horde is fun and satisfying however as others have pointed it does feel a bit mindless as in there is little challenge offered back, our zombies just seem to be able to overwhelm really easily even against the shooting guards and landmines. 

The simplicity of controls did leave me wondering if there were some other "hidden controls" that i wasnt aware of for example i was trying to click to understand if something would happen like boosting zombie speed or splitting the horde.

Music is fitting and gave a nice goofy ambience. Definetly has some potential of growth trough some level progression and challenge ramp.

I played the Web Version which also lagged a little bit but it wasn't a consideration to my rating. 

Good job! 

Well-chosen music and the gameplay is really intutive and self-explanatory. Watching the horde grow is fun, and turning people quite satisfying.

I didn't enjoy the game myself overall, which may in part just be because I'm not a fan of zombies, but I think I felt that it became a bit tedious quite quickly. The first level felt too long for there being no pushback  - you are just collecting people until you've filled up a bar, with seemingly no pressure. But even in further levels it felt that the challenges were somewhat irrelevant. I was never at risk of losing - the horde always absorbed enemies quicker than they could shoot me, and the enemies themselves activated their own land mines (which is funny, but meant that I didn't struggle with them one bit.)

Once this was clear it felt too much like I was controlling the mindless horde quite, well, mindlessly. But I note that others found the game really fun and it may just be a genre that I'm not familiar with and don't get much out of, so this could definitely be a case of me just not at all being the target audience.