Thank you so much for playing and for the feedback! It makes me really happy to know you enjoyed the game and appreciated it's strategic depth!
The space bar thing is a serious oversight of my part, I'm really sorry!! I pushed another hotfix and now there's a proper Proceed button (the Space bar still works). Thank you very much for pointing it out!
The Sun Spirit is quite bulky and has one of the strongest nukes in the game. I've been trying to balance it fairly but still keep that sense of "OMG this Daimon really rules" proper to the Spirit of the very Sun! There's an eclipse mechanic in play which, albeit situational, balances it back a little - but I don't spill the mechanic out explicitly in the game, just drop some vague hints :)
(there's a logic to it though)