add a game rule that let's you allow or ban upgrading cores without core zone tiles

[jehosula]

Describe the content or mechanics you are proposing.

a game rule that makes core zone tiles necessary to upgrade a core like how erekir cores already work, but you can change it

Describe how you think this content will improve the game. If you're proposing new content, mention how it may add more gameplay options or how it will fill a new niche.

it will allows for serpulo maps to limit how much you can upgrade particular cores and for erekir maps to remove said restriction

Before making this issue, check the boxes below to confirm that you have acknowledged them.

• [X] I have checked the Trello to make sure my suggestion isn't planned or implemented in a development version.
• [X] I am familiar with all the content already in the game or have glanced at the wiki to make sure my suggestion doesn't exist in the game yet.
• [X] I have read README.md to make sure my idea is not listed under the "A few things you shouldn't suggest" category.

[DEpObORnik]

a very good idea, should be added

[OnyxFinger]

Interesting for forgetful mapper ig

there is nothing I'm against here

[jehosula]

Interesting for forgetful mapper ig

hmm

[github-actions[bot]]

This suggestion is now stale, and will be automatically closed.