http://steamcommunity.com/stats/SpiralKnights/achievements
This is just Steam players, but even so, the drop-off rates of player progression are fairly sickening. Here's some stats from the list:
-78% of players got to the rescue camp. aka, 22% of people downloaded this game and never played it.
-55% of players completed the tutorial and made it to Haven. Only a little more than half of the people who got this game finished the tutorial.
-24% of players deposited a mineral into the gate construction.
-14.5% of players heated any item to level 10.
-13.2% of players crafted a 1* item.
-12.6% of players beat Snarbolax.
-10.4% of players got T2 clearance. Only 10% of people made it 1/3 of the way through the game.
-3.8% of players defeated the Royal Jelly.
-2.8% of players defeated The Roarmulus Twins.
-2.1% got T3 clearance.
-1.4% got to the core.
-1% defeated Vanaduke.
-.5% of people obtained a full five star set.
Is this what you want, OOO? Do you want .5% of people who download this game to get to the point where they would regularly spend money and provide stable revenue?
Trick question:
How many mules are in there and did not even made it past the tutorial?
At least 6 in my case... so... there you go...
Stats are stats... Take them and understand them... don't just check them and see low scores and *instant panic attack*
The fun part for me is: I got all the achievement with my main
Edit: And I got all my stuff 5* as a F2P... and know a lot of people who did too