Refence

Demo mean the game will not be update or mean i dont have all content ?

game not running when not focused sucks when theres automation upgrades to allow you to idle

Okay, I don't appreciate not being able to immediately change volume settings before the game begins. I play each of my idle games muted so this really ticked me off.

starting to suspect that the boss is coded to be unkillable, have ~900 dps after some upgrades with the same results

massive boss hp/regen spike at d3 wave 70, 4 lv40 heroes (~300 dps) managed to get him to half health before minions get sent to 1shot the base
prolly either need higher rarity heroes or a lot of grinding, d1 and d2 were manageable without grinding

pretty alright game, but its quite slow and gets boring pretty quick. It is just a demo, and the full game might be better, but this doesnt make me want to buy it.

good game. maybe have a speed up button?

@ENDAHBLAZE the game does actually have a speed up option, but it's locked behind a couple of research upgrades in the library.
I will admit that I did not remember the game being this slow at the start.

All in all, it's a nice game, not really my cup of tea, but I could understand others enjoying it. For me, I find there's a mismatch between how slow the game is and how active you have to be (even when your heroes are levelled up enough to handle waves without your input). i.e. With how few resources you get per wave, it implies it's more of a second-monitor game. But then if you don't look at it every couple of minutes, you won't progress to the next wave.

I personally would get a lot more invested if speed-up (at least x2 or x4) and auto-choosing rewards/hero levels wasn't locked behind hundreds of waves of resources. Keep the filtering in research, sure, but at least let us pick at random from the start so we can actually play idle-y and not have to pay attention to it every minute or two. The use of multiple currencies and a gacha in this sort of game feels... wrong. I can't dock you for it, but with those mechanics, plus gating the idle-ness in an idle-focussed game behind a few hours of progress... it just veers towards scummy behaviour, especially if the full game has in-game purchases.

As things stand, it entertained me for a couple of hours and I unlocked level 3, but I'm not about to sit here for another hour to get to level 4 and (maybe?) get enough paper to unlock relics.

One of the few game demos where I actually ended up thinking it was worth the money. Bought it back in March or so.
While I got my money's worth, the gameplay did end up growing a bit long in the tooth. The requirements for heroes' later tiers (from duplicate copies) got rather silly.
Contrary to my expectations the game didn't end up adding more heroes after release. Pretty sure nothing ever hinted at this being a possibility, but it seemed like a logical addition to the game to me.