Finished this game.
My biggest gripe with this game is that the levels were all very samey. You're essentially running around the same space station over and over again with little variance, save for a few caverns and ZOMG weird alien levels. Compare this to something like Forsaken (which I'm not saying is necessarily better than Overload) where there is so much level variety: a volcano that is about to erupt, a thermonukular power station that is about to explode, a bank, a sunken submarine, an abandoned subway, a space station, an aztec temple, etc; all of them are memorable in their own right. In Overload the only standout level was Tehthys Lab, which is a masterpiece I admit. The alien levels were also memorable but not exactly for the right reasons... Also they all ended in the same predictable way: get to the final section, find the reactor, try to destroy it while getting swarmed by infinitely respawning enemies, then make your way to the escape chute before the reactor explodes in 30 seconds. It got old fast.
The enemies were also kinda meh. Look I know this was a low budget title, and that that is supposed to be the spiritual successor to Descent, but all of the enemies are essentially the same flying robot with different weapons and one or two attack patterns (range or ramming). Again, I kept thinking back to Forsaken where you have flying enemies of varying degrees of mobility, tanks, turrets, mines and mine layers, and even rival bikers which were the set pieces on certain levels. The enemies sound design in Forsake was also top notch in that each and every one of them had their own distinctive engine and weapon sounds so if you listened carefully you always knew what waited for you around the corner.
Speaking of which in Forsaken there was this cool feature where you could select a bike at the start of the game. The bike came with its own set of statistics (which in Overload are even more customizable due to the upgrade system obviously), but more importantly each biker had his own voice or personality like the gruff biker dude, the robot, the sexy chick, the nerdy scientist, and so on. Also you could choose a voice for the bike's computer. Voice clips would play when something happened on screen, like you were low on health or you picked a power-up. They added a lot of flavor to the game IMO. Here in Overload they have VA but they use it to tell some generic story that I didn't even pay much attention to if I'm being honest with you. I think going with the Forsaken route with regards to the VA would have made the game more flavorful. Also they fell prey to one of my most hated things in action games: they liked adding these long dialogue sections right in the middle of an action sequence. Bitch I'm a tryina avoid gettin tastefully gang raepd by five different robots, I ain't got no time to listen to your bullshit life story!
Other than that the game is good, especially the shooting which is top tier. The weapons are good and satisfying to use and the enemies explode really nicely. Good job to the devs. The upgrade system I'm sort of on the fence about. On the one hand the upgrades are cool and even allow for the change of behavior of a weapon, so no boring +20% to damage nonsense. Also it's nice that it incentivize exploration to look for the upgrade points. But on the other hand it means that once you've upgraded one energy and one normal primary weapon you probably won't use the others very much afterwards. With the secondary weapons it was different because ammo for them was limited so you had to use whatever was on hand.
The difficulty was also refreshingly challenging. I played on normal and I can't even remember how many times I died towards the end of the campaign lol.
Anyway a solid game overall. The biggest letdown were the samey levels but it was a budget title so what can you do... Sad to hear there won't be any sequel.