The file Seamless Co-op v.0.0.3 is a modification for Dark Souls: Remastered, a(n) rpg game. Download for free.
File Type: Game Mod
File Size: 1.5 MB
Last Update: June 1, 2025
Downloads: 490
Last 7 days: 61
Problems with download? [email protected]

Seamless Co-op is a mod for Dark Souls Remastered, created by LukeYui. If you end up enjoing this mod please consider supporting it’s creator through Ko-fi or Patreon
Simply put, the mod allows you to play with friends throughout the entirety ofthe game with no restrictions. With this, it's theoretically possible to play the game from the tutorial up to the final boss completely in one co-op session.
Along with core function of this mod, there are a number of quality of life improvements that you might like:
In the vanilla game, unmodded, there is only multiplayer scaling for bosses. In seamless co-op, scaling has been introduced for every enemy. This is configurable in the ds1sc_settings.ini file.
Playing through the entire game in multiplayer makes Dark Souls significantly easier. The default scaling settings are what I have found enjoyable to somewhat preserve the game's challenge.
Dying during a boss battle or invasion will put your character into limbo, spectating other players until either everyone in the party has been defeated, or a player rests at a bonfire.
Can this ban me?
No. The mod prevents you from connecting the FromSoftware's matchmaking servers, and it uses save files different to the non-modded game. There's no way to get banned using this mod unless you modify it with the intent of connecting to vanilla players.
As this mod introduces new items not found in the base game, it uses a different save file to the normal '.sl2' extension. This means that you cannot access your Seamless Coop save files in the base game, and vice versa. Do not revert mod save files back to vanilla save files, as you will likely get banned.
You do not need any other mods to use seamless co-op. The NexusMods 'Requirements' tab is mods that require Seamless Coop, not the other way around.
Compatibility with other mods has not been tested. You may use other mods, so long as they do not interfere with the multiplayer aspect of the game, or edit any of the items the mod uses to function.
Download the mod
Extract the package you downloaded, and move the following files to your Dark Souls Remastered folder (usually in "C:\Program Files (x86)\Steam\steamapps\common\DARK SOULS REMASTERED\Game")
Edit "ds1sc_settings.ini" to your chosen co-op password
Launch the mod using "ds1sc_launcher.exe"
You don't really have to uninstall the mod. You can use the launcher when you want to play it, otherwise just run the game normally. If you'd like to remove it fully, simply delete the files you downloaded from here.
We strongly recommend a secure session password, if a player knows your co-op session password then they can join immediately. The mod uses Steam's matchmaking interface alone in order to engage in multiplayer with others. Note that you must set a password to host and join sessions:
One player must host, and other players must join. You must have the same password as the person(s) you'd like to play with (found in the "ds1sc_settings.ini" file).
"seamlesscoop\locale not found which has no fallback"
- You need the locale folder in your Game/SeamlessCoop directory. Check the mod description page for installation instructions and try again.
Unfixable:
- "Failed, Steam timed out". This is nothing to do with the mod - there is just no connection to Steam. Remember that the servers go down for maintenance every Tuesday.
- The mod can't fix poor internet connections
Q) Does this worked for cracked/pirated games?
A) No, I'm also not going to be supporting these versions so please don't make bug reports about it
Q) Isn't this just easy mode?
A) Not necessarily, while co-op play does make the game objectively easier, it's also a completely different way to play the game. There are plenty of "easy mode" mods out that that just give you high health/damage. This mod will be easier but is made in mind of those who want to play the game the whole way through with friends. It has been designed with fun in mind as opposed to reducing the challenge.
Q) Can I use my save game from the base game?
A) You can, although it would require more work. As mentioned the mod uses separate save files by using the ".co2" file extension instead of ".sl2." Make a copy of your .sl2 file, then change the new copy to .co2. Once ingame, you will receive the mod items automatically. Do not move your save from the mod to the base game, as that may get you banned.
Q) Will updating the mod affect my current playthrough with it?
A) No
Q) Can you get Steam achievements while using this mod?
A) Yes
Q) I have a question not answered here.
A) If you need more information, or wish to report a bug, have a suggestion etc. please make a post about it, or send me a direct message.
Game Mod Size: 4.1 MB DL: 791 Upd.: April 22, 2022
Game Mod Size: 469.5 KB DL: 1.9K Upd.: April 17, 2022
Game Mod Size: 24 MB DL: 1.6K Upd.: March 17, 2022
Game Mod Size: 4.1 MB DL: 23.9K Upd.: October 30, 2021
Game Mod Size: 1.5 MB DL: 3.6K Upd.: September 1, 2021
Game Mod Size: 798.3 KB DL: 1K Upd.: July 22, 2021
Game Mod Size: 76.7 KB DL: 420 Upd.: June 8, 2020
Game Mod Size: 14.1 MB DL: 3.3K Upd.: June 7, 2020
Game Mod Size: 23 MB DL: 612 Upd.: May 17, 2020
Game Mod Size: 1.8 MB DL: 765 Upd.: May 2, 2020
Game Mod Size: 2.4 KB DL: 1.3K Upd.: May 3, 2019
Game Mod Size: 2 KB DL: 491 Upd.: March 31, 2019
Game Mod Size: 3.5 MB DL: 910 Upd.: March 9, 2019
Game Mod Size: 5091.3 MB DL: 253.2K Upd.: October 28, 2022
Game Mod Size: 1254.7 MB DL: 1.51M Upd.: July 12, 2023
Game Mod Size: 1.6 MB DL: 851.7K Upd.: December 6, 2023
Game Mod Size: 115.8 MB DL: 112.8K Upd.: February 7, 2024
Game Mod Size: 1.2 MB DL: 549.6K Upd.: July 3, 2024
Game Mod Size: 4.3 MB DL: 401.6K Upd.: July 3, 2024
Game Mod Size: 889.9 MB DL: 29K Upd.: November 4, 2025
Game Mod Size: 1 KB DL: 23.7K Upd.: April 6, 2025
Game Mod Size: 41 MB DL: 36.2K Upd.: April 29, 2023
Game Mod Size: 70 KB DL: 172.2K Upd.: September 20, 2020