Thats strange because those screenshots are definitely from Grey Goo. Look at this:

https://www.youtube.com/watch?v=qeM_Hwl76OU

All the UI is the same - and buildings from the screen shots are from human faction and that laser units are Shroud faction.

But if it was sci fi RTS with human factions then maybe "supreme commander". Factions are different but fundamentally all 3 of them are human. One "normal", next Cyborg-human and the last one is humans who embrace alien technology - sort of. Annnnd Humans are blue, Cybrans are Red and Aeon is green so it fits ;)

I know this one - screenshots done all the works. It is "Grey Goo" (2015)

I think it is "Rock of Ages"

@Black_Knight_00: I just checked G-Darius but its not it. On the other hand i just found out about nr 3 - its Lezac (AKA Larax & Zaco). So its two more to go on my list, thank you ;)

There are 3 games that are stuck in my mind for years now and i still have some hope left in me, so here goes nothing.

1.

Genere: Shoot-'Em-Up, 2D, Action

System: PC/Windows

Setting: SciFi / Space

All i remember about this game is that i played it long time ago, about late 90 early 2000 - it was a demo included on a cd from a magazine in my country. The gameplay was like Gradius or R-type, there were different ships to choose from, if my memory serves my well they looked different and had different colors (blue, green, yellow) and they played differently (different speed, attack and charged attack). Most distinct thing i remember about game is mid-level boss - it was a giant mech with a sword, and he was spinning slowly his sword around (sword was glowing), he was pacing around the level slowly too xD. all graphics was polygon like (not sure about this but the mech boss is polygon in my mind)

2.

Genere: Shoot-'Em-Up, 2D, Action

System: PC/Windows

Setting: World War?

This is a hard one .... it was a side-scroller with a graphics like from that movie "chicken run" - situation similar to the first one: late 90 early 2000 - demo from magazine. All i remember was blimps on the background and spining golden coins around the level, and machinegun weapon wich you could get.

3.

Genere: 2D, action

System: DOS/PC/Windows

This is probably the oldest - i saw it first probably early/mid 90 played on DOS-PC and then i got a CD with alot of random stuff from a friend (it was burned by him so no brand) and it was one of the games on it - it worked on windows 95-98. The game was about blowing up buildings - you started as a blue man with a range of colored bombs - all with diferent power and amount to use. Blue bombs were the weekest, there were also green and few others. You also could obtain (i dont remember how) a motherbomb with hillarius power (it was glitering-rainbow and HUUUGE). The goal was to go around the level and check for weak spots in the struckure and place thous bombs around to collaps it all

Thx in advance ;)

@tarask: I believe its PROTOLIFE

I believe its PROTOLIFE