I Got Killed By A Crazy God; Now I Became OP In A Different World

It all began on the night in which I died, I remembered that day so well, it's clear as day. It started as any other day would, I get up and work the fields all morning. When noon hits, I sell the crops to the same old man who comes by everyday. But, he didn't come today, I waited a bit more but he never came. Then, I walked back into my farm house while watering the flowers along the way. I just couldn't bear to think that the old man might be dead. When the clock struck 6:00 there was a flash by my door, I cautiously walked up to the door but before I could open it, the door flew open and I saw a sight I can never forget. Then before I realized, I was dead. Anyways back to the present, I woke up in a deep dirt hole. There was dirt dropping down from above!? I looked up and saw people who look about my age trying to cover me in dirt. I tried to climb out, when I got up, the kids disappeared. I looked around and it seems I am in Europe. I knew because I studied during my free time. Before I could take a step, I fell through the ground and blacked out. When I woke up, I saw a figure standing in front of me, I heard, "Oops, I accidentally opened a dimensional rift." I finally opened my eyes wide and saw a tall person. So, I asked who they were and they said,"I am the self-proclaimed god of power. So you see, I kind of accidentally killed you and uh... so, you're dead". What?! Like I said, you are dead. But don't worry, since you died this day, I can spawn you in a random world. Can't you just send me back to my world, I said. No, I cannot, because its not fun that way. Well how about this, I will give you a special power but accept my offer of going to a random world. Deal? Deal. Ok it's settled, bye. I decided to look forward to travel this random world. Next moment, I was teleported to a vast green land. Then I just realized that I forgot something very important, I forgot to ask what my power was. Anyways no point in wondering what it is now. I looked around and saw a stone tower not too far away. I walked to it and went in. Seems like it wasn't locked. I walked up the spiral staircase and there was a doorway, I walked out.