Yui

Hi everyone This post covers a detailed bugfix report for 0.0.6. As a quick disclaimer, I am typing this entire Patreon post using speech-to-text software. My arm is recovering slowly, but it's still taking quite a while, and it's still quite difficult to type for long periods of time. Fixed a bug w

Hi everyone Dark Souls 2 Seamless Co-op was released as an alpha build on 22 September 2026. The current release build is 0.0.5 and the next release, 0.0.6, will be out shortly. When that happens, I will release a full breakdown of each issue fixed and the way that I went about fixing it in my next

Hi everyone I apologise for not making as many posts on Patreon. Between wanting to give my arm some rest to get better from the tendonitis and also doing some work on getting some major updates to DS2 seamless, I've been a little bit preoccupied. I wanted to make a quick post regarding some confusi

Hi everyone This post covers a detailed bugfix report for 0.0.5. As a quick disclaimer, I am typing this entire Patreon post using speech-to-text software. Fix a bug where total soul memory was not tracked correctly, causing the shrine of winter to be impassable in Dark Souls 2, there are three diff

Hi everyone I wanted to make a brief post regarding some general mod-making announcements. This will apply to my seamless co-op mods as these projects are currently my main focus. I have recently released the seamless co op mod for Dark Souls 2, which is currently still in the early teething stages

Hi everyone This post covers a detailed bugfix report for 0.0.4. I apologise for the delay - as a consequence of prolonged RE sessions I've developed tendonitis in my dominant arm and have been advised to rest. Reminder to look after yourselves. Your posture and ergonomics matter! As a quick disclai

Hi everyone This post covers a detailed bugfix report for 0.0.3. v0.0.3 Guest will now be able to get all Steam achievements whilst in a host world Some players were reporting that non-host players could not unlock steam achievements whilst playing in the host world. I looked into this, and it turns

Hi everyone This post covers a detailed bugfix report for 0.0.2. v0.0.2 If the 'death_debuffs' option is set to 0, the company of champions will no longer afflict your world Not so much a bug as a feature. Many players join the Company of Champions covenant without realising that in doing so they ma

Hi everyone The mod has been out for a few days now, and I'd like to make a post talking about a few behind the scenes goings on and further development / bug fixes in the mod. This post covers a detailed bugfix report for 0.0.1. Since 0.0.2 is already out, I will add another post shortly covering t

Hi everyone This is a post letting you know that the Dark Souls II: Seamless Co-op mod is now live! Download the mod: NexusMods GitHub Known issues The mod is currently in ALPHA. Do not expect a flawless / bug free experience. The intention of mod release now is to collect feedback and bug reports a

Hi everyone Apologies for the delay in update frequency I've been very busy since I got home last week, I tried to keep to the mid-September deadline but this past week has reminded me to not be specific with dates in the future. Release window III The mod will be out early this week on 22/09/26. On

Hi everyone In my previous post regarding the release time frame for Dark Souls 2 seamless co-op, I estimated that the release window would be early this month (September). Release window II As release windows are extremely stressful for me, I need to make sure I am around to address any immediate i

Hi everyone I wanted to make a quick update to the state of the covenant mechanics in Dark Souls II seamless co-op. Mirror Knight Squire A unique mechanic in Dark Souls II is the Looking Glass Knight boss fight. This is a fight where the boss is able to summon other players as adversaries to fight a

Hi everyone Following the video I posted regarding the formal announcement of Dark Souls 2 seamless co-op just over 5 weeks ago, I just wanted to keep people updated on the progress toward an initial release. Updates are slow right now as where I live is continuing to experience extreme temperatures

Hi everyone This post is free to access as I'm answering some commonly asked questions about matchmaking and how online play works. I wanted to make a quick update to the state of the PvP mechanics in Dark Souls II seamless co-op. Friendly fire / PvP Similar to the other seamless co-op mods, one of

Hi everyone, Since I've been working more on Dark Souls 2 this week. As I mentioned in my previous post, I've been working on stress testing the mod to make sure it can handle the conditions real users will be playing with. In this post I'll be going over some of the progress I've made. Stress Testi

Hi everyone Apologies for the lack of development posts this month. Since I got back from vacation I've been hard at work on the finishing touches of the seamless co-op mod for Dark Souls II: Scholar of the First Sin. In this post I'll be discussing further progress I've made this week. Map state lo

Hi everyone I wanted to make a brief post regarding some general mod-making announcements. I've returned home from visiting family overseas and work has resumed. My main focus is currently getting Dark Souls II seamless co-op ready for alpha testing. Dark Souls: Remastered [ BETA ] No further develo

Hi everyone Between the recent heatwaves in Europe and my AIO CPU cooler exploding over the weekend I haven't made as much progress on the mod as I would have liked, however development of the mod continues. Individual progression A cornerstone of the seamless co-op mods is that progression achieved

Hi everyone Just so that people are aware, I have changed my online alias on ALL platforms to yuiamoroll. This will be the case going forward. I am usually quite a private person in regards to what is going on in my personal space, however this represents a long-overdue reflection of a new (and much

Hi everyone It has been just over a year since I made an announcement post detailing the start of the development of the seamless co-op mod for Dark Souls II: Scholar of the First sin. The date I made that post is the date that I managed to get 2 clients connected to each other without the use of th

Hi everyone Development of the mod continues. In this post I'll be discussing even more discoveries and workarounds I've had to create to get the mod working in a more playable state World state progression In previous posts I've discussed about MapSnapDataManager. This is a class that holds up to 3

Hi everyone I wanted to make a brief post regarding some general mod-making announcements. This will apply to my seamless co-op mods as these projects are currently my main focus. I've passed my most recent exams, and my next (and final) one is toward the end of the year so I have more time than usu

Hi everyone Development of the mod continues. In this post I'll be discussing even more discoveries and interesting fixes for the development of the enemy synchronisation aspect of the mod. Enemy synchronisation I've gone on about this a lot in my previous posts, but I'd argue it's a pretty importan

Hi everyone Development of the mod continues. In this post I'll be discussing a QoL feature for the mod, as well as some changes I've made to the core co-op elements of the mod. Controller deadzone Dark Souls II is notorious for it's controller dead-zone layout which can make controls feel unrespons

Hi everyone Development of the mod continues. In this post I'll be discussing some bug fixes I've made and the sever event treasure mechanic in Dark Souls II. Vanilla bug fixes and QoL improvements "Disable double click" bug for keyboard users A bug that has plagued KB+M players for over a decade at

Hi everyone Development of the mod continues. In this post, I will mention some WIP multiplayer features, specifically some challenges behind one of the more unique multiplayer mechanics. Team types In order to make friendly fire / friendly PvP modes. I needed to figure out how Dark Souls II figures

Hi everyone Development of the mod continues. In the previous post I mentioned about cursed soul fragments which are items acquired on death in order to encourage players to reset the enemies by interacting with bonfires. Here I will expand on that with some additional mechanics and some insight int

Hi everyone Development of the mod is back on track. In this post I will be discussing the balancing mechanics of the mod. Scaling As discussed earlier in this post: In order to somewhat preserve the game's challenge, I have implemented my own baseline scaling manager within Dark Souls II seamless c

Hi everyone I wanted to make a brief post regarding some general mod-making announcements. This will apply to my seamless co-op mods as these projects are currently my main focus. I finished my exams on Thursday and can now start working full-time on these mods again. I apologise for the delay in my

Hi everyone Development of the mod continues. The production is a little slower this month as I am preparing for another exam in March. In this post I will be discussing the direction for the mod in terms of the more unique mechanics of Dark Souls II, and some issues I've ran into along the way. Net

Hi everyone I wanted to make a brief post regarding some general mod-making announcements. This will apply to my seamless co-op mods as these projects are currently my main focus. The start of 2026 is particularly busy for my professional life, as I have a few looming exams I need to do well in to p

Hi everyone It has been a few weeks since my last update post on Dark Souls II seamless. Rest assured however, I have been hard at work on the mod still in the background. In this post I'll be discussing PvP implementation in the mod. Dueling arenas Ever since the addition of invasions in Elden Ring

Hi everyone This post is slightly different to the usual mod updates I have written before. Lord Radai, a very talented reverse engineer focusing on Dark Souls II, has made me aware of a potentially serious exploit currently being abused in Dark Souls II. PushSendMessageToPlayer In the Dark Souls ga

Hi everyone Happy new year! I hope you have all had a nice holiday period, and that your 2026 has got off to a good start! I have been taking some time away to spend time with family overseas, but now I'm back to working on Dark Souls II. I've also been working on releasing a hot-fix for Blue Acolyt

Hi everyone Development of the mod continues. The production is a little slower this month as I am a bit overwhelmed with other personal matters, but I'd like to make a post on some of the stuff I've been working on. Engine changes I spent a great deal of time reverse engineering the game's default

Hi everyone I wanted to make a brief post regarding some general mod-making announcements. This will apply to my seamless co-op mods as these projects are currently my main focus. December is a very busy month for my personal life. Rest assured that I haven't forgotten about any projects, and as soo

Hi everyone Development of the mod continues. I plan on releasing a mod announcement video in the next week - not a release video - but just explaining some more information about the mod and it's timeline. I've made a few advances in the last few days which I'll write more about below: Player frame

Hi everyone Development of the mod continues. And in this post I will further discuss some points I made in the previous development post Proximity chat Originally I wanted to eventually add proximity chat as a stretch goal after the mod was released and stable. Unfortunately my brain got stuck on t

Hi everyone Development of the mod continues. And in this post I will describe some of the features I've added / modified on top of the vanilla co-op experience. Enemy Scaling In the vanilla game, only certain powerful enemies have any sort of multiplayer scaling (e.g. bosses behind fog walls). Enem

Hi everyone This post is available to everyone as it has been a while since I've made a general post about the mod's development. Timeline I've had a large increase in the amount of people asking for ETAs and progress reports on Dark Souls 2 seamless co-op. I want to assure everyone that I am still

Hi everyone Happy Halloween! Development and testing continues on seamless co-op for Dark Souls II. In this post I'll discuss what I've been working on this past week. Event flags Event flags in the other souls games are used for everything you can think of - from game progression (e.g. boss kills,

Hi everyone Development and testing continues on seamless co-op for Dark Souls II. In this post I'll discuss what I've been working on this past week. Player Respawning In a previous post I briefly detailed the work and functionality of respawning players in the mod. In other seamless co-op mods, co

Hi everyone I wanted to give an update that leads on from the post previously when I was talking about the challenges of implementing game-wide enemy AI synchronisation between game clients, something that is uniquely challenging in Dark Souls II The problem Enemy AI is implemented (in my opinion) p

Hi everyone I am back home and have started back with seamless co-op development. In this post I'll describe some of the results of the playtest I did this afternoon. Mainly focusing on the bugs and issues encountered along the way. Overall: It's working "OK" in a sense that it's playable with some

Hi everyone Following the previous post I made a few days ago, I wanted to give some information on some of the behind-the-scenes goings on with the mod development. The post will go a bit more in-depth to the reverse engineering aspect of two elements of the mod I've been working on today. Hi every

I hope everyone is doing well! I've been rather focused the past week on pushing past some of the obstacles I've encountered during DS2 seamless development. In this post I'll go over the progress I've made on these issues and where the mod is at right now. It has been longer than I'd like since the

Hi everyone! I finished my exam on Wednesday this week. So now I am available to dedicate more time to the Dark Souls 2 seamless co-op project. In this post I'm just going to discuss a few more development points in the mod. Bonfires I've spent the past few hours today working bonfires into seamless

Hi everyone I haven't made an update post about the Patreon page before, but I have a few updates I'd like to share going forward: Paid & exclusive posts Recently I made my first paid-only post. I understand not everyone is happy being "pay-walled" out of content, however I want to assure people tha

Hi everyone! I hope you're well - The last update post for this project was all the way back in May of this year. To clarify, I have been very busy with my personal life since July and as a consequence all of the mod development for my projects have been slow and delayed. However I hope by reading t