Unfortunately I cannot recommend this game. Let me get into details:
This game has [or maybe had?] rather large potential, however it is heavily flawed at this point in time. The key problems are: This game seems to attempt to focus expansion, while the gameplay loop discourages expansion in favor of few key heavily upgraded towers. At this point one has to wonder if term 'upgrade' [or 'overcharge' as it seems to be called in-game], is upgrade or overcharge in the first place, due to pathetic performance of towers without any 'upgrades', to the point of being unable to defeat even first wave enemies in a way that does not allow these enemies to damage any of the structures of the player. That includes single basic enemy attacking a tower [that shoots back]. Admittedly - this enemy will die, however only after damaging tower in question [or other structure].
Tower upgrade path seems to be brainless - get some more damage output, get some more range [basically], what you want is to get as little damage and range as possible to keep enemies at range that they cannot destroy your miners[ which will be most likely in middle of the base exploiting range upgrade to hell and back]. Why? Shields are area inefficient, base range is 5, they use some energy, and can be destroyed relatively easily. Unless - you guessed it - you upgrade their range and power, at which point you need to add both of these either to turrets or to shields or both, all of which use rather large amount of resources. Range seems to have linear cost increase [including power] and linear range increase, leading to square improvement in area of effect. As increase later on costs the same but area changes dramatically this makes range upgrades cheaper in effect the longer game lasts, which in turn makes expansion of the base even more focused on 'core' towers.Due to combination of range and power the only thing that keeps them from being even more insanely powerful is the fact that the targeting script is completely braindead,without much possibility to change it [for example - miners will mine one piece of crystal only to turn 180 degrees to mine another, and get back 180 degrees afterwards only to mine 3rd, especially annoying if the crystals in question are extremely small]. This forces to use artificially blocked LOS to make them more efficient being more of a chore rather than interesting gameplay mechanics. Why not expand base instead? simple - each block of expansion via cables [standard method] costs 4 resources. This means that to move area you need to pay 4 resources per block. At the same time you can expand that area for 30 resources with simple range upgrade. If you include all other costs [expansion of power lines, socket, range and power generation] you get total cost of less than 400 for expansion of range by 4. [and that includes 10 powerline blocks, just in case], it also assumes inefficient design Sounds a lot? no worries - default settings allow you to reconfigure it asap into combat turret just in case.
There are no blueprints or ability to save layouts, for example to make standardized custom turrets, that means that every turret has to be constructed manually - by placing blocks/modules one by one... with slightly off collision detection making it nearly certain that you WILL misplace blocks. This is just a hassle with default settings, but can be annoying if you have major reduction in refunds post-sale of modules.
Game revolves around energy - which is dirt cheap. For 200 resources you get enough power to deploy a turret and 3 upgrades [that is assuming data that the game provides you are accurate]. At the same time the feedback for energy use and generation is... limited at best.
Good thing is that this game has random maps, though it won't keep you going for long, as all the maps work exactly the same way. Graphics is simple but pleasant to eyes.
THE biggest issue I have with this game is that it's apparently been in Early Access for over a year [despite devs claiming it will be in EA for 2-3 months], last update was apparently over a year ago, and for question about information about state of the game, the dev responded with what is basically 'we have better things to do rather than keep you updated on state of our game, that is still technically in development'
To be frank - I would recommend AVOIDING this game until the final version is released, at which point, if some major changes are made to the game [major, not some changes in looks or adding weapons that do not change the core issues like usability] I will considering giving it another go.
