Hello! I played your game today, and what you have was a lot of fun! My feedback below may sound like I didn't enjoy it, but I see a lot of potential here. I'd play this again after a couple of updates. Here's what I got for you:
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OVERALL FUN:
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Overall... I think you do have a great game here! Only issue... balance. Combat is tough at first, and if players aren't willing to learn... you might have a lot that quit after 1-2 attempts. You should consider making the first couple of rounds easier... draw the player in, then increase the challenge as we go. Remember... if we're playing our first time, those initial rounds are also a tutorial to us.
Couple of things that feel a bit broken...
1) The random weapons and buffs are nice because it changes up runs, but earlier rounds should be guaranteed two offensive weapons, one tower, and only one buff. I started a new run once... and only got the sword as an offensive weapon, two buffs, and one tower. I didn't even survive round 1 because the sword is slow, has a short range, and there are so many enemies.
2) The earlier rounds have way too many enemies. That... or lessen the amount of HP they have. I shouldn't feel stressed or overwhelmed during Round 1 :-)
3) The gun AI had me screaming at my screen several times. They kept attacking enemies further away instead of those closer that posed a bigger threat. Especially since the goal is to survive until time ends... killing enemies closer to your "dev studio" can be the difference between life and death.
However...
I LOVE the creative side of your modules! Defending the game dev studio from viruses/bugs and strengthening it with creative upgrades, mods, and weapons! I really enjoyed reading all the descriptions! This is unique and creative!
So much variety in weapons, upgrades, and towers. I also love how certain towers affect the weapons differently. The one that gives you 50% of your money spent back to anything placed on it, 10 kills per tower increase it 1%. There's some nice strategy here, and you make your players think. I like that!
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CONTROLS/UI:
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Controls are simple and easy to understand (this is good).
The UI looks nice, but the font is pretty small. Not horrible if you play in full screen but many people might have difficulty reading this. I was fine, but you may want to consider enlarging the font for some players.
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ART:
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Not bad. The enemy artwork is nicely done and animated. I love the little flaming balls creatures.
The icons look good, and weapon artwork and animations are done well.
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SOUND/MUSIC:
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There was none. No music on the menu or in-game, and 0 sound effects. Not even ambient sounds. I kept checking if it was muted, and I saw nothing.
My personal opinion... audio in video games is SO important. Music helps set the tone, sound effects help immerse the player into the action, and even ambient sounds will help draw us in further. Perhaps a loud siren/drone that goes off as the round starts for the "impending doom" and SFX as your cannons fire, swords slash, etc. You may be adding this later, though.
Or is there audio and I somehow missed it?