I've basically got TWO main ways of 'farming' on CryptoRaiders...Questing, which is very passive, or running raids which is more active (read more 'work).
Questing...
The first and more passive option is to just send my Raiders on Quests for GrimWeed or Newt which I can then use to brew potions which I can sell.
One Minor Health Potion (MHP) currently sells for 13 Arum, or around just > $0.30.
I need 3 GrimWeed and 2 Newt plus 3 Arum to brew one MHP, and one raider can get three ingredients per day - so I can brew 3/5ths of a potion per day, so that's around $0.20 a day.
That's a 75% ROI roughly on the cost of an L1 Raider....
Compared to Running Raids....
NB at the moment I can only sell loot from my maxed L9 Raiders as they're the only ones capable of surviving the max level dungeon which practically guarantees you something you can sell (all lower level gear from lower level dungeons you can't sell).
My other option, for which I have to take my Raiders off their quests, is to run raids - I get five free raids a week....
One raid takes about 3 minutes, so a total of 15 minutes for 5 raids....
Typically I get Gear worth 4-8 Aurum a Raid, so on average we're looking at around 25 Arum per batch of raids, which = around $0.62 a week.
That's a 35% ROI only.
And for all the lower level raiders, 0.
HOWEVER, Level 9 raiders are worth about 2.5 times as much as Level 1 Raiders, and 100 Raids is enough to progress up all the way - so in 6 months worth of free raids you would have effectively made > 100% ROI.
So, if things remain equal, the free raids are worth MORE than the Quests, BUT they do take A LOT MORE TIME!
So both is best and perpetual raiders grind MUST continue...
I have to take my raiders off questing to brew potions anyway, so I guess it's not the end of the world if I just run them through 5 raids at the same time.
NB I haven't factored in gear from the Endless Dungeon or tournaments into this!