Editing Unreal Engine (section)

===Verse===
Verse is the new scripting language for Unreal Engine, first implemented in ''[[Fortnite]]''.<ref name="Verse debut">{{Cite web |date=March 23, 2023 |title=Dive into Epic's announcements from GDC 2023 |url=https://www.unrealengine.com/en-US/blog/dive-into-epic-s-announcements-from-gdc-2023 |access-date=March 23, 2023 |website=Unreal Engine |archive-date=March 23, 2023 |archive-url=https://web.archive.org/web/20230323015419/https://www.unrealengine.com/en-US/blog/dive-into-epic-s-announcements-from-gdc-2023 |url-status=live }}</ref> [[Simon Peyton Jones]], known for his contributions to the [[Haskell (programming language)|Haskell]] programming language, joined Epic Games in December 2021 as Engineering Fellow to work on Verse with his long-time colleague [[Lennart Augustsson]] and others.<ref>{{Cite web |last=Peyton Jones |first=Simon |date=November 5, 2021 |title=An Epic future for SPJ |url=https://discourse.haskell.org/t/an-epic-future-for-spj/3573 |access-date=May 4, 2022 |website=Haskell Community Discourse |archive-date=May 20, 2022 |archive-url=https://web.archive.org/web/20220520133225/https://discourse.haskell.org/t/an-epic-future-for-spj/3573 |url-status=live }}</ref> Conceived by Sweeney,<ref>{{Cite web |date=March 25, 2022 |title=Interview with Simon Peyton Jones |url=https://haskell.foundation/podcast/11/ |access-date=March 27, 2023 |website=Haskell Foundation |quote=So Tim Sweeney is the founder and CEO of Epic and he is a computer scientist and has been interested in programming for a long time. So he knows about Haskell and loves Haskell actually. So I think that’s why he thought of people like me and Lennart and was keen to have us. But Verse isn’t a Haskell clone by any means. It’s a language that Tim has been designing sort of in his head actually for – I don’t really quite know how long, I should ask him – around a decade. So it’s informed by functional programming and imperative programming and game programming and logic programming. There’s a lot going on in Verse. Lennart’s and my job is to sort of reverse engineer Verse out of tim’s head and get it set down in a kind of formal semantics that everybody else can make make sense of. |archive-date=March 27, 2023 |archive-url=https://web.archive.org/web/20230327002033/https://haskell.foundation/podcast/11/ |url-status=live }}</ref> it was officially presented at Haskell eXchange in December 2022 as an open source [[Functional logic programming|functional-logic]] language for the [[metaverse]].<ref>{{Cite web |date=2022-12-12 |title=Beyond Functional Programming: The Verse Programming Language (Simon Peyton Jones) |url=https://www.youtube.com/watch?v=832JF1o7Ck8 |access-date=December 12, 2022 |website=[[YouTube]] |archive-date=December 12, 2022 |archive-url=https://web.archive.org/web/20221212194257/https://www.youtube.com/watch?v=832JF1o7Ck8 |url-status=live }}</ref> A research paper, titled ''The Verse Calculus: a Core Calculus for Functional Logic Programming'', was also published.<ref>{{Cite web |last1=Augustsson |first1=Lennart |author-link1=Lennart Augustsson |last2=Breitner |first2=Joachim |last3=Claessen |first3=Koen |last4=Jhala |first4=Ranjit |last5=Peyton Jones |first5=Simon |author-link5=Simon Peyton Jones |last6=Shivers |first6=Olin |last7=Steele |first7=Guy |author-link7=Guy L. Steele Jr. |last8=Sweeney |first8=Tim |author-link8=Tim Sweeney (game developer) |date=March 2023 |title=The Verse Calculus: a Core Calculus for Functional Logic Programming |url=https://simon.peytonjones.org/assets/pdfs/verse-March23.pdf |url-status=live |archive-url=https://web.archive.org/web/20230315071420/https://simon.peytonjones.org/assets/pdfs/verse-March23.pdf |archive-date=March 15, 2023 |access-date=March 27, 2023 |website=Simon.PeytonJones.org}}</ref>

The language was eventually launched in March 2023 as part of the release of the Unreal Editor for ''Fortnite'' ([[Unreal Editor for Fortnite|UEFN]]) at the Game Developers Conference, with plans to be available to all Unreal Engine users by 2025.<ref name="Verse debut"/>