Card Shop Simulator Multiplayer
by ShaneGame · 17 Jun, 2025
5 downloads
About the Game
Three diverse modes, each offering a different experience.
Single Player Mode
Play at your own pace. Hire staff to help manage your shop with ease, and your progress is fully saved. You can always join a friend’s multiplayer game using your solo save file.
Co‑op Multiplayer Mode
Invite up to 3 friends and run a great card shop together! Experience the joys of teamwork, unleash your creativity to decorate your shop, share the excitement of opening card packs, and challenge your friends to a friendly card duel on a lazy weekend.
Competitive Multiplayer Mode
Want to compete to see whose shop earns more, whose cards are stronger, or whose card‑battling skills are sharper? Each player runs their own shop on the same street, fighting to attract customers.
Collect Rare Cards
With over 400 cards spanning 7 generations and a wide variety of card frames to enrich your collection, there’s always more to discover. Some mysterious cards only appear under special conditions. Legend tells of a set worth a fortune—with a bit of luck, you might obtain it on your very first day, while others may never catch even a glimpse of the myth.
Wager your cards and enter the duel!
Classic Duel
Featuring an auto-battle system based on elemental strengths and weaknesses, this mode delivers a fast-paced and accessible card battling experience—full of thrilling randomness and luck.
Advanced Duel
A turn-based battle mode where you command every move—decide which cards to play, choose attack targets, and master the timing of each spell. Total tactical control is in your hands.
Uncover the Secrets of the Street
Venture Beyond Your Shop
Step into the streets and discover all kinds of surprises—maybe a hidden card, a game of basketball, a rooftop view, or a trader who buys spare cards. Challenge the local gym, too. Whenever you explore, something unexpected is always waiting.
Showcase Your Creativity: Customize Your Shop
Use a wide range of interactive decorations, plants, shelves, card display walls, flooring, ceilings, plush toys, and statues to design a shop that’s uniquely your own.
Screenshots
25 images
Version Information
Steam Patch Notes
Official update history
Hello, Shopkeepers!
This update mainly focuses on fixing recently reported issues related to card pack purchases, special shelves, and employee restocking behavior. Thank you all for your continued feedback during gameplay. We will keep working to improve the overall game experience.
Fixes
Fixed an issue where limited-purchase card packs could be purchased infinitely.
Fixed an issue where employees would not restock special shelves properly.
Fixed an issue where employees could not restock Spell Card Packs.
Fixed an issue where Holiday Card Packs could not be placed on special shelves.
Fixed an issue with the restocking logic for special card packs.
Additional Notes
Some players have also reported that rare/deluxe card packs obtained through rewards or CD keys cannot be restocked after being placed on shelves.
This happens because the gifted rare/deluxe packs and the rare/deluxe packs purchased from the shop currently do not share the same item ID. If you encounter this issue, please use rare/deluxe packs purchased from the shop to reset the product shelf label. After doing so, NPC employees should be able to restock the shelf normally.
We are still working on a proper fix for this issue.
If you continue to encounter similar problems after updating, please feel free to report them through the Steam Community or other feedback channels.
Thank you all for your support and patience. We will continue working hard to improve the game content and overall experience.
Thank you!
Hello, Shopkeepers!
We have released the V0.306 update. This update mainly focuses on fixing the multiplayer issues that players have recently reported.
Fixes
Fixed multiplayer connection issues
Fixed an issue where some players were unable to enter multiplayer mode, join rooms, or connect properly in multiplayer sessions.
Fixed save issues in multiplayer mode
Fixed an issue where saves could not be properly created or updated in multiplayer mode. Multiplayer progress should now be saved more reliably.
Notes
We sincerely apologize to players who were affected by the previous multiplayer or save issues.
If your save file was affected in an earlier version, we recommend trying to load a save from the V0.2 version period to recover your previous progress as much as possible.
Thank you for your feedback, testing, and support during this time. Your reports helped us locate and fix these issues more quickly.
We will continue monitoring player feedback and improving the stability and overall experience of multiplayer mode.
Thank you for your understanding and support!
Dear Store Owners,
Due to some issues affecting the online mode in version v0.303, we have temporarily rolled back the official version of the game to v0.300 in order to ensure a more stable gameplay experience for everyone.
We are currently investigating and fixing the problems found in v0.303. We sincerely apologize for any inconvenience caused by this update.
If you are interested in trying the latest version, you can switch your game to the dev1 beta branch on Steam to experience the newest development build. We also welcome you to report any bugs or issues you encounter while playing, as your feedback will help us locate and fix problems more quickly.
How to switch to the beta branch:
Right-click the game in your Steam Library
Select “Properties”
Go to the “Betas” tab
Choose the dev1 branch
Thank you very much for your continued support and understanding. We will continue working on the fixes and release the update again once the version is stable.
Once again, we sincerely apologize for the issues caused by this update.
— The Development Team
Fixed an issue where save files could be lost in multiplayer mode.
Fixed nighttime display issues.
Fixed an issue with abnormal card acquisition, along with several other bugs.
Hello everyone! It’s been a while — here’s what’s included in this update.
👉 This update is currently available on the Dev1 branch
You can switch to it via:
Properties → Betas → Dev1
🔧 Fixes
Fixed an issue where Reset Key Bindings did not work
Fixed a bug where Holiday Cards showed 6 missing cards even after full collection
Fixed an issue where Room Type displayed Italian instead of French in French language settings
Fixed incorrect Lua statements in Mods
Improved core system stability
(The underlying code has been fully refactored. There may still be unknown issues — full testing is required before releasing to the main branch. If you still experience freezes, please @ us.)
🧹 Adjustments
Removed Christmas cards from the scene
Removed the fixed figurine on the luxury checkout counter
Added support for resolution: 2560×1080
✨ Modding Features
Added support for custom God Card drop rates
Added support for custom weekly (Wednesday & Sunday) pack purchase limits
Modding repository:
CardShopSim_modding/README_EN.md at main · UE4yangyiming/CardShopSim_modding
Here is the translation of your changelog into English. I have used standard gaming terminology (like "Day Cycle Speed," "Host/Client," "Vanilla") to make it sound natural to players.
📦 Patch Notes (v0.224 - v0.228)
Game Settings
Added a "Daily Game Speed" option in the settings menu. This allows players to adjust the speed of the in-game day cycle (Note: This does not affect the overall game simulation speed).
Building System
Optimized placement logic: Items can now be placed under stairs.
Bug Fixes
Cards & Items:
Fixed NPC card drawing logic: Resolved an issue where the computer would not draw vanilla (base game) cards.
Fixed the color display error for the "Rock Golden Trophy."
Corrected the shop text for "Grass Shelf 02."
System:
Reverted changes related to Scene Instanced Static Meshes to ensure game stability.
🛠️ Mod Editor & Support
Localization Support
Comprehensively updated the Mod system's localization features (v0.228).
Reference: Please check UE4yangyiming/CardShopSim_modding for a full runnable example: Localization (Multi-language Support).
Functional Fixes
Fixed an issue where Mod Rare Cards were not functioning.
Fixed an issue where Rare Cards could not use Mods to modify "Extremely Rare" effects.
Fixed an issue with Mod payment method loading.
Note: The function for modifying payment methods requires code updates. Please refer to UE4yangyiming/CardShopSim_modding for details.
🌐 Multiplayer
Stability & Sync
Decoration Rating: Fixed an issue where joining players (Clients) could not correctly obtain the decoration rating.
Mod Stability: Fixed a critical bug where Mods would be incorrectly unloaded from the Host when a new player joined the game.
Client Features: Fixed an issue where Clients were unable to change the Shop Name.
Hello everyone, here are the latest updates on the new Mod creation APIs.
If you still experience unpleasant gameplay or encounter bugs, please contact me via the forum, discussion board, or QQ group: 722792074 — your feedback is very important to me.
Added
Mod Creation API Released:
📂 Modding Documentation: UE4yangyiming/CardShopSim_modding
1️⃣ Extra God Card Draw
Mods can now include cards with the “God Card” attribute, which follow the God Card draw logic:
God Cards can use any element type.
When enabled, players can obtain all existing God Card types listed in the card table.
Currently, only four visual effects are implemented; other God Card effects will temporarily use the Rain God effect.
Custom God Card borders will glow with a shiny effect if marked as God Cards (same price as normal).
The central floating effect cannot be customized, as materials are not yet user-configurable.
2️⃣ Full-Screen Effect for Normal Cards
Normal cards can now use full-screen card effects by adding the following property:
D.UseBigImage = true
3️⃣ Additional PlayerState Interfaces
You can now bind extra interfaces within your Mod.
Example — after adding your custom payment method modification function, you can include these hooks:
-- Triggered for each card when checkout is completed
klass.OnCardSoldOverall = function(self, CardID)
MOD.Logger.LogScreen("Card checkout completed, CardID = " .. tostring(CardID), 5, 0, 1, 0, 1)
-- Custom logic here
end
-- Triggered for each card when a card pack is opened
klass.OnCardOpenedOverall = function(self, CardID)
MOD.Logger.LogScreen("A card was drawn from the pack, CardID = " .. tostring(CardID), 5, 0, 1, 0, 1)
-- Custom logic here
end
If you have ideas for new Mod API features, please leave a comment under this update post — I’ll continue expanding the Modding system based on your feedback!
Hello everyone, here are the latest updates and additions.
If you still experience unpleasant gameplay or encounter bugs, please contact me via the forum, discussion board, or QQ group: 722792074 — your feedback is very important to me.
Added
Added Mod creation support — Mods can now be subscribed to directly via the Steam Workshop
Created the Developer Package (v0.221 Devlog), which allows you to view in-game Mod error logs
[img src="{STEAM_CLAN_IMAGE}/45536620/ce314080827fe4e2a7928a7631991a05bfb96a74.png"]
(Note: The developer build’s save files are stored locally only. If you need to preserve your progress, please move your saves from the system AppData folder to the corresponding local save directory.)[img src="{STEAM_CLAN_IMAGE}/45536620/f9166508c5175a0f2c4e2d58d6b372cba3ba7684.png"]
Added Mod API for customization — now supports editing:
Payment methods
Card draw probabilities
Rarity probabilities
Trait probabilities
Rarity prices
Trait prices
For more details, check: UE4yangyiming/CardShopSim_modding
Modified
Changed the sorting order in the Card Collection Album:
Previously sorted by ID (ascending) → now sorted by Generation (ascending),
and within the same generation, still sorted by ID
Hello everyone, here are the latest updates and improvements.
If you still experience unpleasant gameplay or encounter bugs, please contact me via the forum, discussion board, or QQ group: 722792074 — your feedback is very important to me.
Added
Added a special Halloween card pack, which can be opened to obtain 10 Halloween-themed cards
Optimized
Improved the logic for skipping the current round when victory conditions are already met in normal battles
Added
Increased the maximum number of customers allowed in the shop
Added 1200×800 resolution option
In normal card battles, if a player wins by using more than 3 cards, that round will be skipped automatically
Added a new option for restock employees: after finishing restocking regular card packs, they will now place any special card packs into the special pack shelf (special pack boxes on the ground are ignored)（The employees will randomly select a special shelf for storage.）
Optimized
Grass-type dividers now block AI pathfinding
Adjusted the cat’s minimum recycle price to 0.01
Fixed
Fixed an issue where the cat could interact with 8th and 9th generation items
Fixed an issue where employees would not pick up a box if it had already been placed on a shelf
Possibly fixed an issue where customers’ eyes emitted light
Possibly fixed a LowLevelFatalError crash issue
Possibly fixed an issue where customers could get stuck during checkout
Optimized
Added description for the turn-based card battle table
Improved controller handling in the card album
Fixed
Fixed an issue where the camera view would become disoriented at the normal battle table
Fixed an issue with incorrect card count display
Fixed an issue where customers might not check out
Fixed an issue where multiple customers could get stuck together
Fixed an issue where players could not greet
Fixed an issue where the management app features could not be used
Fixed an issue where AI could attack players who had used a flying spell card
⚙️ Optimization
Added auto-snap to checkout as a toggle in the settings menu (default: off)
Reset settings will no longer reset custom keybindings
Price adjustment no longer has a limit of 99999 — you can now enter higher values
🐞 Bug Fixes
Fixed an issue where changing the item price at the exact moment a customer picks it up would cause them to purchase it at the new (higher) value
Current Release
Build 25361999
Uploaded Oct 17, 2026
System Requirements
How to Install
CardShopSim.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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