If you are looking to "make" a feature by updating your version or developing a mod, consider these highlights from the Peglin Version History :
: Establishing a "Peglin Village" using gold or orbs collected during runs to unlock permanent upgrades for future attempts. Peglin.v0.8.6.zip
: Introducing characters like the Roundrel or Spinventor (which were added in later versions) with unique mechanics like "Spinfection" or "Ballwark". If you are looking to "make" a feature
: Allowing players to continue their run after defeating the final boss, with enemies scaling in difficulty. Official Features Added in Similar Versions Peglin.v0.8.6.zip