diff --git a/vendor/sdl3/sdl3_thread.odin b/vendor/sdl3/sdl3_thread.odin
new file mode 100644
index 000000000..ab92b85d7
--- /dev/null
+++ b/vendor/sdl3/sdl3_thread.odin
@@ -0,0 +1,90 @@
+package sdl3
+
+import "core:c"
+
+Thread :: struct {}
+ThreadID :: distinct Uint64
+
+TLSID :: AtomicInt
+
+ThreadPriority :: enum c.int {
+	LOW,
+	NORMAL,
+	HIGH,
+	TIME_CRITICAL,
+}
+
+ThreadState :: enum c.int {
+	UNKNOWN,     /**< The thread is not valid */
+	ALIVE,       /**< The thread is currently running */
+	DETACHED,    /**< The thread is detached and can't be waited on */
+	COMPLETE,    /**< The thread has finished and should be cleaned up with SDL_WaitThread() */
+}
+
+ThreadFunction :: #type proc "c" (data: rawptr) -> c.int
+
+TLSDestructorCallback :: #type proc "c" (value: rawptr)
+
+@(default_calling_convention="c", link_prefix="SDL_")
+foreign lib {
+	CreateThreadRuntime :: proc(fn: ThreadFunction, name: cstring, data: rawptr, pfnBeginThread: FunctionPointer, pfnEndThread: FunctionPointer) -> ^Thread ---
+	CreateThreadWithPropertiesRuntime :: proc(props: PropertiesID, pfnBeginThread: FunctionPointer, pfnEndThread: FunctionPointer) -> ^Thread ---
+}
+
+@(require_results)
+CreateThread :: proc "c" (fn: ThreadFunction, name: cstring, data: rawptr) -> ^Thread {
+	return CreateThreadRuntime(fn, name, data, BeginThreadFunction(), EndThreadFunction())
+}
+@(require_results)
+CreateThreadWithProperties :: proc "c" (props: PropertiesID) -> ^Thread {
+	return CreateThreadWithPropertiesRuntime(props, BeginThreadFunction(), EndThreadFunction())
+}
+
+PROP_THREAD_CREATE_ENTRY_FUNCTION_POINTER :: "SDL.thread.create.entry_function"
+PROP_THREAD_CREATE_NAME_STRING            :: "SDL.thread.create.name"
+PROP_THREAD_CREATE_USERDATA_POINTER       :: "SDL.thread.create.userdata"
+PROP_THREAD_CREATE_STACKSIZE_NUMBER       :: "SDL.thread.create.stacksize"
+
+
+BeginThreadFunction :: proc "c" () -> FunctionPointer {
+	when ODIN_OS == .Windows {
+		foreign {
+			_beginthreadx :: proc "c" (
+			        security: rawptr,
+			        stack_size: c.uint,
+				start_address: proc "c" (rawptr),
+				arglist: rawptr,
+				initflag: c.uint,
+				thraddr: ^c.uint,
+			) -> uintptr ---
+		}
+		return FunctionPointer(_beginthreadx)
+	} else {
+		return nil
+	}
+}
+
+EndThreadFunction :: proc "c" () -> FunctionPointer {
+	when ODIN_OS == .Windows {
+		foreign {
+			_endthreadex :: proc "c" (retval: c.uint) ---
+		}
+		return FunctionPointer(_endthreadex)
+	} else {
+		return nil
+	}
+}
+
+@(default_calling_convention="c", link_prefix="SDL_")
+foreign lib {
+	GetThreadName            :: proc(thread: ^Thread) -> cstring ---
+	GetCurrentThreadID       :: proc() -> ThreadID ---
+	GetThreadID              :: proc(thread: ^Thread) -> ThreadID ---
+	SetCurrentThreadPriority :: proc(priority: ThreadPriority) -> bool ---
+	WaitThread               :: proc(thread: ^Thread, status: ^c.int) ---
+	GetThreadState           :: proc(thread: ^Thread) -> ThreadState ---
+	DetachThread             :: proc(thread: ^Thread) ---
+	GetTLS                   :: proc(id: ^TLSID) -> rawptr ---
+	SetTLS                   :: proc(id: ^TLSID, value: rawptr, destructor: TLSDestructorCallback) -> bool ---
+	CleanupTLS               :: proc() ---
+}