I always thought that in some way everyone was a hypocrite. It is impossible to drive for instance perfectly. Many speed and do wrong things willfully. Some do not even pull over for an ambulance. So, we are all sinners. Your piracy is wrong and it was willful. Praise God that you have repented. Your conscience seems better than most and I personally do not think that you need to repay the gaming software companies or Sega. Just accept God's mercy and move on. The Old Testament way was proverbs 6 (below). When Jesus was with the adulteress who was almost stoned, he wrote something on the rock, I wish we knew what that was but the woman was sent home and not stoned. Jesus sometimes would say go and sin no more as well.
There are some that might talk about fruits. John the Baptist said to repent and bear fruits worthy of repentance. What are those fruits? It seems to me that they are a change of heart to do things right for the future.
Here is what one source writes. "The fruits of repentance are simply
good works or fruits of righteousness that one produces when one truly repents of their sins and becomes saved. And these fruits are only possible through genuine conversion of the heart in Christ which results in a new heart that produces these fruits."
https://www.patriotledger.com/story/lifestyle/faith/2012/03/31/luke-3-fruits-repentance/
Praise God, go and sin no more, the matter is settled, your sins are forgiven.
I had a revelation once when an employer messed up my benefits. I was pretty mad too. Then God reminded me where I was not perfectly honest on my attendance record. At that moment I just dropped the complaint. In a way God showed me my sin and provided for an equalization of what was really owed.
Just like the ethical dilemma you posted, you too can work on your faith to trust God for finances. Let him show you ways to earn. To take this situation a step further, the time you waste on games might also be a place to work on. Yes, you can have fun, but you do not need the best and greatest games. Live within your means and give some of that time toward God.
I think that a believer on the streets needs to trust God for a way out too. God bless!
Proverbs 6:30-31
People do not despise a thief if he steals to satisfy his hunger when he is starving.
31 Yet if he is caught, he must pay sevenfold, though it costs him all the wealth of his house.