Hello,

recently there where few posts about "play to earn" at RollerCoin. So I registered and check myself.

Alas the results are really far from play to earn, as all my calculations shows quite big effort to get almost nothing and being able to withdraw after 1 year at best.

The basic process at RollerCoin is to get mining power. That you can get for free mostly by playing minigames, or by investing your money and purchase miners.

You then assign your mining power and get rewards (your part of overall reward each 10 minutes, exactly according assigned power).

You can try to outsmart others by selecting the coin with best profit, but as its simple excel table it does not matter much.

Very quickly there is some balance reached, where all coins provide about same reward.

And also all coins have quite simillar minimum withdrawal amount.

It changes a bit in time, as the value of coins changes, but usually all coins raise of falls at same time.

So lets get to some math to check it out.

Part 1 - free to play:

I assume that you dont want to invest and risk (or even just wait a year to get your investment back). At least its good to see overall options and verify the site.

When you sucesfully finish a minigame, you will get some mining power. Its temporary, it will only last for limited time.

After some medium effort, you can reach max "level" and then all power from minigames will last 7 days.

There is few games, but best power comes from "Crypto Hamster".

One game will take about 20 seconds and on low levels I can win like 95% of cases for sure. After about 10-12 wins a day, the game becomes much harder and I can win like 50-60% (until it resets at midnight). So lets assume with some reasonable effort you can win 15 games a day.

You will add some extra from other games and sometimes a random bonus and you will get 20 Th/s each day.

So if you play every day and the power lasts for 7 days you can reach 140 Th/s steady free power.

Now we just need to check how much its in money.

Doge (selected for free withdrawal fees and hope it will go up with more Elon tweets):

Reward is 20 doge per 10 minutes.

Total power 4.17 Eh/s = 4 170 000 Ths.

Our reward per day is 24 hours * 6 per hour * 20 doge * 140 our power / 4170000 overall power.

We will get  0.096 doge per day = 35 doge per year = something over 5 $ per year. And yes, you need to wait almost one yeat to be able to withdraw.

To get there you need to play once every 24 hours, or you loose level (so actually twice a day, to be sure you dont miss it by few minutes). Loosing level will cost you a lot of power, as your gains will last only 24 hours instead of 7 days. So effectivelly 7 times less reward.

You need to spend about 15-20 minutes each day (a game can take about 30s, but sometimes you loose etc.).

I recalculated for BTC and I got to 5.5$. Some BNC or ETH can make more profit, but there is withdrawal fee easily bigger then 5$ (much bigger for ETH).

Result: you will not get paid. You cannot consider 5$ for year effor as a "pay". But games are quite fun, so you can give it a go just to see (maybe you can get extra lucky at some random reward).

If you still want to try (and improve my power a bit), you can register at:

https://rollercoin.com/?r=kv6v7g3v

At next post I will do basic math when you invest some money.

But just to compare, to purchase 140 Th/s (5$ per year) you have to buy miner for about 120 RLT which you can get for 900 doge. That would mean 30 years to get your money back!!! So until I see something on that site to increase efficiency about 60 times, its a biiig "no thanks".