Reminds me of Last Stand series and actually well crafted with all of the defense mechanics.
There's guns, forts, traps and main objective to build and survive until the end.
Super fun and addicting!

I remember playing this game as a kid and finishing it. So you pretty much play as a guy with a top hat that gets stranded with a hot air balloon and you have to repair it to finish the game. You get weapons ranging from a pistol to a laser rifle that can one-shot enemies. You can upgrade weapons that give you extra damage and magazines. You do get turrets that you can upgrade by killing the blob-like monsters. You fight blob monsters ranging from small ones to big ones. You can get traps that can either slow down enemies or kill them depending on the one you're using. You can purchase a fort that you can upgrade to get more turrets that have a limit of 3. You can get other upgrades that can give you health, and I think give you more points to fix the air balloon. You do need to sleep in this game. If not then If your sleep meter goes down by 50 percent then you get less accuracy when firing so do it when you are at a safe zone. You do get achievements in the game but for me, I only got 18 out of 20 of them. There was one problem I have, which is that when you shoot a gun a matter amount of times you keep hearing it even though you're not firing but I mute the game after a while and it was fixed. I give this game a 9 out of 10.

A rather simple defense game. In fact, you could argue that most of the game's depth ends up being unnecessary, since if you just repair the balloon whenever an opportunity shows up, you can get the achievement for escaping before day 4 easily.

Random trivia that I've found in the process of getting to day 7:

-The fort makes you untargetable by literally all enemies, even the flying ones and the ones that are twice the size of the starting fort. If you're getting overrun, just head up into the fort and you'll be safe. Enemies don't come back once they're off the screen so feel free to come back down in order to kill the stragglers.

-The machine gun is the best weapon in 99.9% of situations. The Boompipe can instantly kill everything in one shot, but the low fire rate results in poor crowd control, a weakness that the rapid-firing and fast-reloading (with the second upgrade) machine gun doesn't share. The MG isn't even that bad at killing the huge guys.

-If you're performing an action during which you can't shoot (repairing the balloon, healing yourself, building your fort, probably) while holding a rapid-fire weapon, you can hold the fire button down to cause massive lag. This is completely pointless and goes away in a few seconds.

Used to play this when it came out. so simple but quite addicting

Love this game