Wine 11.18 Adds More NTOSKRNL Support and Fixes Six Named Games

By Indie Kings | September 26, 2026

Updated September 26, 2026: Wine 11.18 is out as a development release, with more NTOSKRNL support for kernel drivers, a wide range of code correctness fixes, compatibility fixes in standard C headers, and game-specific fixes including Assassin's Creed Rogue, Super Meat Boy, Enclave, Star Wars: Knights of the Old Republic, Return to Krondor, and The Bard's Tale IV Director's Cut.

Verification note: Changes are from the Wine 11.18 release notes as reported by GamingOnLinux on September 21, 2026. This is a development release, not a stable branch release, and the game list is what the release notes name rather than a tested compatibility statement.

Image: Wine. Credit: GamingOnLinux.

Why a Wine release reaches your Steam Deck

Wine releases do not obviously connect to gaming hardware, so it is worth being clear about the dependency chain before getting into the changes.

Wine is one of the main components that power Valve's Proton, alongside DXVK and VKD3D-Proton. Proton is what lets tens of thousands of Windows games run on SteamOS, which covers the Steam Deck, the Steam Machine, desktop Linux, and Steam Frame. Every time a game works on a Steam Deck that is not natively ported, some of that chain did the work.

So a Wine development release is not a Linux desktop story. It is upstream plumbing for the entire Steam Deck compatibility catalogue, which is why it belongs on a gaming hardware site even though the name sounds like office software.

What NTOSKRNL support actually means

The headline item is more NTOSKRNL support for kernel drivers. The name is opaque, so the mechanism is worth unpacking.

NTOSKRNL is the Windows NT kernel interface that has historically been exposed to user-mode processes, a set of entry points that let ordinary applications call into the operating system's deeper layers. Code that uses it is doing something closer to a driver than a normal program, which is why software relying on it has traditionally been the hardest thing for a compatibility layer to support.

Every increment of support here widens the set of applications Wine can run without a rewrite. It is slow, unglamorous work, and it is the kind of progress that does not produce a headline but does determine whether a particular tool or launcher works at all.

The kernel anti-cheat question

The natural question, and the one raised in the reader comments on the same page, is whether better NTOSKRNL support could eventually let kernel-level anti-cheat run.

The answer in that thread is no, and the reason is architectural rather than a matter of progress. Wine is a user-mode compatibility layer. It cannot elevate to kernel level or execute code with ring-0 privileges, and there is currently nothing a user can do on their side to change that.

That distinction matters because it explains why some multiplayer titles stay blocked on Linux despite years of compatibility work. The gap is not that the compatibility layer is insufficiently mature. It is that the security model differs in a way no amount of user-mode emulation resolves, since the whole point of kernel anti-cheat is to operate where user-mode software cannot reach.

The code correctness work

The rest of the release is the unglamorous majority that makes up most Wine changelogs: a wide range of fixes for various code correctness issues, plus compatibility fixes in standard C headers.

Header compatibility sounds trivial and is not. Games and middleware compile against standard C headers, and when a header declares a function with the wrong signature or a struct with the wrong layout, the result is not a clean error but memory corruption or a crash somewhere unrelated. Fixing those is unglamorous and disproportionately effective, because a single header defect can affect an entire class of titles at once.

The named game fixes

The release notes name fixes for the following, and it is worth reading the list for what it says about the current state of the catalogue.

Assassin's Creed Rogue
Super Meat Boy
Enclave
Star Wars: Knights of the Old Republic
Return to Krondor
The Bard's Tale IV Director's Cut

Two of these are worth noting beyond the list. Enclave is a 2002 shooter, which is a useful data point on how far back the compatibility layer reaches when something is broken. And Return to Krondor appears in the Wine 11.18 notes and separately in the same week's Proton Experimental update, where it had a rendering corruption fix, so the title was being worked on at two layers in the same few days.

Star Wars: Knights of the Old Republic is the most recognisable name on the list and is the sort of title whose Linux support tends to be a community project rather than something that works out of the box, so a named fix is meaningful.

FAQ

What is in Wine 11.18?
More NTOSKRNL support for kernel drivers, a wide range of fixes for code correctness issues, compatibility fixes in standard C headers, and various bug fixes including Assassin's Creed Rogue, Super Meat Boy, Enclave, Star Wars: Knights of the Old Republic, Return to Krondor, and The Bard's Tale IV Director's Cut.

How does Wine relate to the Steam Deck?
Wine is one of the main components powering Valve's Proton, alongside DXVK and VKD3D-Proton. Proton is what runs Windows games on SteamOS, which covers the Steam Deck, Steam Machine, desktop Linux, and Steam Frame.

Does better NTOSKRNL support mean kernel anti-cheat will work?
No. Wine is a user-mode compatibility layer and cannot elevate to kernel level or execute code with ring-0 privileges. The limit is architectural rather than a matter of maturity, and there is currently nothing a user can do on their side.

Is Wine 11.18 a stable release?
No, it is a development release. Development releases are for testing and are not the branch you want for everyday use.

Why do standard C header compatibility fixes matter for games?
Because games and middleware compile against those headers, and a wrong function signature or struct layout causes memory corruption or crashes in unrelated places rather than a clean error. One header defect can affect a whole class of titles at once.

Which games had specific fixes in Wine 11.18?
The release notes name Assassin's Creed Rogue, Super Meat Boy, Enclave, Star Wars: Knights of the Old Republic, Return to Krondor, and The Bard's Tale IV Director's Cut. The list reflects what the notes mention rather than a formal compatibility rating for each title.

Bottom Line

A development release with no headline feature is what most Wine changelogs look like, and reading it as a gaming story requires the context that Wine sits underneath Proton and therefore underneath the entire Steam Deck compatibility catalogue. The NTOSKRNL work is the item with the longest tail, because every increment widens the set of applications that run without a rewrite, and applications built on those interfaces have historically been the hardest to support. The part worth stating clearly is what this will not fix, since the question came up in the thread and the answer is architectural rather than a matter of progress: Wine is user-mode and cannot reach ring-0, so kernel anti-cheat stays blocked no matter how good the compatibility layer gets. That is the reason some multiplayer titles remain unavailable on Linux, and it is not going to change on a development timeline. The named game fixes are the visible part and the list is a decent cross-section, from a 2002 shooter to Knights of the Old Republic, with Return to Krondor notably being worked on in Wine and in Proton in the same few days.

Source: GamingOnLinux, Wine 11.18 released with more NTOSKRNL support for kernel drivers, by Liam Squires-Hand, September 21, 2026, reporting the Wine release notes and including reader discussion