mmmwwm, r15 takes hours currently. be sure that you are up to date on trophies, up your excavations (with cooin pillage it isnt needed so much to save excavations) on a noobs account stuck on r15 last week i bought all excavations (x2,5 from his current amount) and his income shot up to x25 from what it was (and this was without using the increased goldgain to buy more buildings) also: check if you have the Know Your Enemy artifact, it adds a bonus to mercenaries (smallest i have seen: 13k%)
micheal, maybe turn ofgoblin 2? (the one tha affects demon) if you have it.for the rest the desription is pretty clear.
i would advice waiting for r7+, elf blood makes it a matter of seconds
bink: you have to haave the artifacts linked to the faceless faction (either 25or 30 excavs, dont remember) thats it. oh and are you sure you have 3 days? :P i dont know why but there have been ppl yelling bug lately and when i looked into their save they only had 1,5 days :P
also: make sure your 3 days are in 1 abdication.
sute: try different browser.
eog: R0 is about 2-5 days for most (depending on unlocks and activity) beyond that it speeds up alot. why make it even shorter? this isnt a 5 min long game XD
boomknight: awnsered. abail: go into settings buddy. to both of you (and ppl who encounter the same) explore all the buttons and settings in the game to make sure it isnt just you missing something.
ps: these things are way faster awnsered in chat
froman, the demon challenge is not bugged. check all upgrades you buy, check if you have a challenge active which affects it (you can turn them off by clicking on them) check the other requirements
matd: its perfect at lower reincarnations where you just buy whatever you want. However... its less usefull at sections later in the game where you have to select certain upgrades and make your own builds.
This is ofc if you make them yourself. there is also an option to import a standard build made by players. So yeah. for some1 who doesnt like to experiment/just wants to load something fast, this is perfect. for ppl who like to compare upgrades and make their own build.... it became alot less intuitive and alot more difficult (in research it requires alot of scrolling to compare upgrades you normally would see in 1 go).
EkaterinaP12: you heard about research? if not go do that. if yes... go unlock all the upgrades and get your research lvl up. also vanilla flavour juice will help alot.
There are many guides on the kong forum and on the wiki if you arent sure how certain parts work!