I think there should be a cap on how many games a player needs to play.
Let's say the average referral has a 75% chance to play a game after playing another game and registering: (This is a high estimate, my previous experience on other sites tells me that only 1 in 4 actually does something)
New Referral:
25% chance to play no games
75% chance to play 1+ games
56% chance to play 2+ games
42% chance to play 3+ games
32% chance to play 4+ games
24% chance to play 5+ games
18% chance to play 6+ games
14% chance to play 7+ games
11% chance to play 8+ games
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My stats (233 referrals in another game, I have spammed around 650 comments) tells me I get on average 0.34 registers per comment I spam.
That means, to win your first month of membership (3 games played), you need 2 registers... that means I need to spam 6 comments.
To win the second month of membership (2 people + 4 games played), you need 10 registers... I need to spam 29 comments. That's fine, but...
To win the third month however, (3 people + 5 games played), it becomes 0.24^3 percent chance that a new register will complete 5 games, which means I need 72 registers! I need to spam 212 comments!
I think the games needed to be played needs to be capped.
Let's say the average referral has a 75% chance to play a game after playing another game and registering: (This is a high estimate, my previous experience on other sites tells me that only 1 in 4 actually does something)
New Referral:
25% chance to play no games
75% chance to play 1+ games
56% chance to play 2+ games
42% chance to play 3+ games
32% chance to play 4+ games
24% chance to play 5+ games
18% chance to play 6+ games
14% chance to play 7+ games
11% chance to play 8+ games
====
My stats (233 referrals in another game, I have spammed around 650 comments) tells me I get on average 0.34 registers per comment I spam.
That means, to win your first month of membership (3 games played), you need 2 registers... that means I need to spam 6 comments.
To win the second month of membership (2 people + 4 games played), you need 10 registers... I need to spam 29 comments. That's fine, but...
To win the third month however, (3 people + 5 games played), it becomes 0.24^3 percent chance that a new register will complete 5 games, which means I need 72 registers! I need to spam 212 comments!
I think the games needed to be played needs to be capped.