I have added a "levelling rewards" calculator on the Levelling page. The calculator works by calculating rewards you get from reaching a certain level from the patterns described on Levelling page. The unlock section had to be hard coded (big array in code) and is still missing levels from 11 to 14, which I intend to reach on my second account (might take a while, as I don't play much). Battering ram does not show correctly for those levels (and apparently for level 15 either, will fix that). By adding this calculator I could remove most of the level rewards (levels from 35 to 80), which reduced page length. I couldn't remove all levels, because unfortunately this feature doesn't work on mobile (something to do with JavaScript not liking mobile users), so I left the levels which unlock something when you reach them. Currently it only shows up to level 1000. I had to limit the size of the input number, so you couldn't break your browser by entering more than 9 digits. I don't expect that anyone could go higher, but I can easily increase that number to 10,000. It took my quite a long time to figure out how JS works on Fandom, so I am really proud of learning it. You can play with the calculator as much as you want, and if you have any suggestions, please write me. There should be no bugs, because I tested a lot, but if there are, write me.
Levelling page: https://nonograms-katana.fandom.com/wiki/Levelling#Reward_calculator
If anyone is interested in the code, here it is. But be aware, I am not a programer.
I hope you like the calculator.