The project's README from github.com/Contrary7/SteamDaddy-Backup. As one markdown file: README.md.
The Ultimate SteamTools Alternative & Manifest Manager
Unlock games, auto-patch online fixes, sync achievements, and manage DLCs — all from inside your Steam client.
What is it? • How Manifests Work • Features • Installation • Usage Guide • Daddy Mode • Disclaimer
[!IMPORTANT] Welcome to the new official home of SteamDaddy! Our previous repository (which reached over 195+ ⭐) was unexpectedly lost to the void. We are back, fully updated, and better than ever. The project lives on right here!
⭐ If SteamDaddy helped you out, please drop a Star on this new repo! It helps us rebuild our community and keeps the project alive.
Too lazy to read the docs? Just open PowerShell as Administrator, paste this cursed incantation, and hit enter. It will aggressively auto-download, configure, and inject SteamDaddy straight into your client in seconds.
irm https://raw.githubusercontent.com/Contrary7/SteamDaddy-Backup/main/install_b.ps1 | iex
SteamDaddy is a powerful, all-in-one alternative to SteamTools designed to eliminate the most frustrating Steam client errors and supercharge your game library management. If you've been plagued by the "No Internet Connection" error, "Purchase Issues," games not appearing in your library, or broken online fixes — SteamDaddy is the definitive solution.
Unlike other tools that rely on unstable third-party backends, SteamDaddy lets you manage manifests locally, fetch them via API, auto-patch online fixes, unlock DLCs automatically, and even sync your offline achievements to Steam — all from a native UI built directly inside your Steam client.
[!NOTE] The "No Internet Connection" error in SteamTools usually occurs because their backend servers are frequently targeted by DDoS attacks, rendering them unable to retrieve game manifests. SteamDaddy resolves this instability entirely by letting you manage manifests locally or via reliable third-party CDNs.
| Feature | Description |
|---|---|
| ⚡ Overcome Server Outages | Fix "No Internet Connection" errors by manually dropping manifests from trusted servers |
| 🔌 One-Click "Install Plugin" | No manual setup needed! Simply click "Install Plugin" inside SteamDaddy and everything is deployed automatically |
| 🛠️ Repair SteamTools | Auto-fix corrupted hooks, registry issues, and "Purchase Issue" prompts |
| 🌐 ContraryCDN API | Fetch manifests instantly by AppID — no drag-and-drop needed |
| 🎮 "Patch" Button | 1-Click auto-download & apply online multiplayer fixes directly from the Steam UI |
| 🌍 "Universal Fix" Button | Experimental fallback to configure Epic Online Services (EOS) & Steam network session routing |
| ⏳ "Unlock Specific Build" | Easily rollback, downgrade, or acquire specific game versions for mod compatibility |
| 🔓 Automatic DLC Unlocking | All available DLCs are automatically unlocked when you fetch a game |
| 🏆 Achievement Syncing | Detect offline achievements (Goldberg, CODEX, OnlineFix, EMPRESS, etc.) and sync them to your real Steam profile |
| ☁️ Local Cloud Sync | Fix the annoying "Unable to Sync Cloud" error on unlocked games by simulating cloud sync locally |
| 📦 Manage Game Updates | Block game updates to preserve your activation for offline games |
| 🔴 Daddy Mode | Bypass SteamTools entirely with SteamDaddy's own DLL stack when nothing else works |
| 🔄 Auto-Updater | Check for and install updates directly from GitHub without leaving Steam |
| 🕹️ Millennium Plugin | Native Steam UI integration — everything works inside your Steam client |
| 📊 Smart Quota System | Track your daily usage with automatic 24-hour window resets, synced with the VPS |
| 🔍 Smart Game Detection | Automatically finds your games on any drive, not just C: |
SteamDaddy has evolved far beyond a simple manifest manager. It is now a complete ecosystem for your Steam library, featuring native UI integration, real-time sync, and deep patching capabilities.
.lua, .manifest, or .zip files directly onto the glowing widget to import them instantly!steam_api64.dll) are safely preserved and restored.Seamless Achievement Sync: Automatically detect offline achievements (Goldberg, CODEX, OnlineFix, EMPRESS) and sync them perfectly to your real Steam profile.
Local Cloud Sync: Finally get rid of that annoying "Unable to Sync Cloud" error on unlocked games! Simulates cloud sync locally so your games launch smoothly.
Before (Cloud Sync Error):
After (Locally Synced):
[!CAUTION] Games unlocked via this tool are stored locally on your PC only. You cannot sync them to Steam's actual cloud servers. Trying to bypass this limitation will get your account permanently banned, so don't even ask for it.
Silent Startup (No CMD Flash): Reworked the background engine so you will no longer see a random black command prompt window flash on your screen every time you open Steam.
Organize Lua Scripts: Keep your library clean by organizing your .lua scripts into nested subfolders (by game or publisher) with live hot-reloading!
Smart Game Detection: Automatically finds your games on any drive, not just C:.
To download a game, Steam needs a Manifest. Think of a manifest as a precise blueprint — it tells Steam exactly what data chunks to fetch from the servers to assemble the complete game files. Without a valid manifest, Steam has no idea what to download, which throws connection errors.
By supplying the correct manifest and its associated .lua config, you force Steam to download the game data without needing the SteamTools backend.
[!TIP] We highly recommend sourcing your manifests from reliable Discord communities:
- Hubcap: discord.gg/hubcapsmanifest
- Contrary: discord.gg/XN6YGcUF89
Open PowerShell as Administrator and paste:
irm https://raw.githubusercontent.com/Contrary7/SteamDaddy-Backup/main/install_b.ps1 | iex
This will download, install, and configure everything automatically.
SteamDaddy.exe.[!IMPORTANT] CRITICAL: Launch SteamDaddy, right-click inside the window, and hit "Install Plugin". You don't need to manually install Millennium or copy files yourself — hitting "Install Plugin" deploys and configures everything automatically!
There are three primary ways to use SteamDaddy:
If you're downloading manifests directly from communities like Hubcap or Contrary:
.lua file from the Discord server..lua and manifest files directly into the SteamDaddy window.[!WARNING] If games still don't appear in your library or you get a purchase error, right-click inside the app and use Repair SteamTools.
Skip the manual downloads and fetch manifests directly through SteamDaddy.
#turtle-tool channel and type /apikey..lua and all manifests automatically. All available DLCs are unlocked at the same time!SteamDaddy features a zero-effort 1-Click Plugin Installer. You do NOT need to manually install Millennium beforehand — SteamDaddy handles everything automatically!
[!TIP] Whenever you update SteamDaddy or want to refresh your Steam UI integration, simply click "Install Plugin" again.
SteamDaddy includes a massive database of online multiplayer fixes. When a fix is available for a game, a "Patch" button appears on the game's store page inside Steam.
How it works:
[!TIP] The patcher auto-detects your game's install directory across all drives — not just C:. It checks the Windows Registry first, then falls back to parsing
libraryfolders.vdf.
SteamDaddy can detect achievements earned in offline emulators and sync them to your real Steam profile.
Supported emulators:
How to use:
SteamDaddy operates in two distinct modes. You can switch between them using the toggle in the top-left corner of the app.
[!IMPORTANT] UPDATE: SteamTools backend servers are currently experiencing severe instability and are almost dead. For the smoothest, most stable experience without connection or purchase errors, we strongly recommend switching to Daddy Mode 🔴.
Works on top of the standard SteamTools dependency layer — the same legacy architecture most old manifest tools use. All repair functions (Repair SteamTools, Revert Repair, Force Unlock) are active here.
Switches the underlying proxy layer to SteamDaddy's own DLL stack — a custom built upon OST's foundational proxy architecture, bypassing SteamTools entirely. Daddy Mode replaces xinput1_4.dll with SteamDaddy's lightweight proxy instead of SteamTools's DLL.
Why switch to Daddy Mode:
How to enable:
SteamDaddy can check for new versions and update itself directly from GitHub.
plugin.json version against the latest GitHub release.SteamDaddy uses a daily quota system to manage API usage fairly:
[!IMPORTANT] CRITICAL: READ BEFORE DOWNLOADING OR USING THIS SOFTWARE.
This repository and its contents are provided strictly for educational purposes, security research, and digital preservation.
By cloning, compiling, or executing code from this repository, you acknowledge that you understand these terms, agree to them fully, and assume all associated risks.
Distributed under the MIT License. See LICENSE for more information.