diff --git a/src/platforms/curseforge/curseforge-version.ts b/src/platforms/curseforge/curseforge-version.ts
new file mode 100644
index 0000000..1c4ea43
--- /dev/null
+++ b/src/platforms/curseforge/curseforge-version.ts
@@ -0,0 +1,190 @@
+import { FileInfo } from "@/utils/io";
+import { JavaVersion } from "@/utils/java";
+import { VersionType } from "@/utils/versioning";
+import { CurseForgeDependency } from "./curseforge-dependency";
+import { CurseForgeFile } from "./curseforge-file";
+
+/**
+ * Represents a CurseForge project version.
+ */
+export interface CurseForgeVersion {
+    /**
+     * The id of this version.
+     */
+    id: number;
+
+    /**
+     * The id of the project this version is for.
+     */
+    project_id: number;
+
+    /**
+     * The display name of the version.
+     */
+    name: string;
+
+    /**
+     * An array of files associated with this version.
+     */
+    files: CurseForgeFile[];
+}
+
+/**
+ * Options needed to create a new CurseForge version.
+ */
+export interface CurseForgeVersionInit {
+    /**
+     * The name of this version.
+     */
+    name?: string;
+
+    /**
+     * The id of the project this version is for.
+     */
+    project_id: number;
+
+    /**
+     * The release channel for this version.
+     *
+     * Defaults to `"release"`.
+     */
+    version_type?: VersionType;
+
+    /**
+     * A string describing the changes in the uploaded file.
+     *
+     * Can be HTML or plain text if `changelogType` is set.
+     */
+    changelog?: string;
+
+    /**
+     * The format of the changelog.
+     *
+     * Defaults to "markdown" if not provided.
+     */
+    changelog_type?: "text" | "html" | "markdown";
+
+    /**
+     * An array of supported game versions for this project version.
+     */
+    game_versions?: string[];
+
+    /**
+     * An array of supported java versions for this project version.
+     */
+    java_versions?: (string | JavaVersion)[];
+
+    /**
+     * The mod loaders that this version supports.
+     */
+    loaders?: string[];
+
+    /**
+     * A list of specific versions of projects that this version depends on.
+     */
+    dependencies?: CurseForgeDependency[];
+
+    /**
+     * A list of files that should be attached to the version.
+     */
+    files?: (FileInfo | string)[];
+}
+
+/**
+ * Options needed to create a new CurseForge version.
+ */
+export interface CurseForgeVersionInitMetadata {
+    /**
+     * A string describing the changes in the uploaded file.
+     *
+     * Can be HTML or markdown if `changelogType` is set.
+     */
+    changelog: string;
+
+    /**
+     * The format of the changelog.
+     *
+     * Defaults to "text" if not provided.
+     */
+    changelogType?: "text" | "html" | "markdown";
+
+    /**
+     * A friendly display name used on the site if provided.
+     */
+    displayName?: string;
+
+    /**
+     * The parent file of this file, if any.
+     */
+    parentFileID?: number;
+
+    /**
+     * A list of supported game versions. See the Game Versions API for details.
+     *
+     * @remarks
+     *
+     * Not supported if `parentFileID` is provided.
+     */
+    gameVersions: number[];
+
+    /**
+     * The type of the version (e.g., release, beta, alpha).
+     */
+    releaseType: VersionType;
+
+    /**
+     * Contains information about dependencies of this project.
+     *
+     * @remarks
+     *
+     * Not supported if `parentFileID` is provided, or `projects` array has no elements in it.
+     */
+    relations?: {
+        /**
+         * An array of project relations by slug and type of dependency for inclusion in your project.
+         */
+        projects: CurseForgeDependency[];
+    };
+}
+
+/**
+ * Represents the form data needed to initialize a CurseForge version.
+ */
+export interface CurseForgeVersionInitForm {
+    /**
+     * The file to be uploaded as part of the CurseForge version.
+     */
+    file: FileInfo;
+
+    /**
+     * The metadata describing the CurseForge version.
+     */
+    metadata: CurseForgeVersionInitMetadata;
+}
+
+/**
+ * Packs the CurseForge version initialization data, game version IDs, and file information into a form data object.
+ *
+ * @param version - The CurseForge version initialization data.
+ * @param gameVersions - The supported game version IDs.
+ * @param file - The file path or `FileInfo` object for the file to be uploaded.
+ * @param parentFileId - The optional ID of the parent file for this version.
+ *
+ * @returns A form data object containing the packed information.
+ */
+export function packCurseForgeVersionInit(version: CurseForgeVersionInit, gameVersions: number[], file: string | FileInfo, parentFileId?: number): CurseForgeVersionInitForm {
+    file = FileInfo.of(file);
+
+    const hasParentFile = typeof parentFileId === "number";
+    const metadata: CurseForgeVersionInitMetadata = {
+        changelog: version.changelog || "",
+        changelogType: version.changelog_type || "markdown",
+        displayName: (hasParentFile || !version.name) ? file.name : version.name,
+        parentFileID: parentFileId,
+        gameVersions: hasParentFile ? undefined : (gameVersions || []),
+        releaseType: version.version_type || VersionType.RELEASE,
+        relations: (hasParentFile || !version.dependencies?.length) ? undefined : { projects: version.dependencies },
+    };
+
+    return { file, metadata };
+}