Extra Sensory II banner

 To promote the release of Vivify, we organized a live event titlled Extra Sensory II, the sequel to the original Extra Sensory event. For this event, I served as project lead, lead developer, and mapper.

 The first run of the event on January 18, 2025, attracted approximately 900 participants, with videos covering the event garnering over a million views. The second run on January 26, 2025, managed to double that, peaking at around 1900 participants.

 Following the event, all maps were made available as a Beat Saver playlist, where they continue to recieve downloads. The mods and additional info are available from the website. For a detailed analysis of the chart I created, see 42-flux.

EXSII Website
Edited playthrough of the event by LSToast
A compilation of reactions by megamaz

 To facilitate the event, I developed Synapse, a solution consisting of both a game server and a Beat Saber mod that connects to the aforementioned server for chatting, leaderboards, and synchronized play. Both are written in C# with the game server making extensive use of asynchronous threading.

 Through the server, the host/coordinators can moderate the lobby chat and leaderboards, as well as synchronously start maps for clients. Hosts can customize the experience with banners, lobbies, and even cutscenes, like we did for Extra Sensory II.

 Synapse was my first major experience with large-scale networking. Despite having no prior experience, I independently developed all the networking infrastructure, which remained stable even with around 1900 concurrent players, all actively playing and chatting.

GitHub Repo

 To help promote the event, I developed and designed a dedicated website with all the information for the event available at https://exsii.totalbs.dev. In the month leading up to the event, the website featured a live countdown at the top that counted down towards the event date.

 In the body of the website are both trailers produced by Mawntee and then all the information about the event. This includes a description of what it is, a download for the mods and setup instructions, an FAQ, and finally the names of the team.

 The website was accompanied by an in-game menu takeover, which also featured a countdown. From the main menu, there was a new button that unlocked after the countdown and also allowed pre-downloading the mods before the event started.

Website preview
Preview of website with countdown
Countdown preview
In-game countdown
Beat Saber category
BS category on Twitch.tv
Active player count during event
Charts by SteamDB.info
Events were held on 1/18 and 1/26
1902 online players
Peak concurrent players of ~1900

 Promotion efforts were highly successful, and we managed to get peak around 900 and 1900 players for the initial run and encore, respectively. Both times, these numbers exeeded our internal team's expectations. During each run, the Twitch.tv category for Beat Saber was dominated by Extra Sensory II coverage.

 The event was incredibly well received, both by the community and newcomers. Our team continues to recieve positive messages, and videos covering the event are filled with supportive comments. The maps and mods used in the event have since become significant within the community.

 On a personal note, Extra Sensory II has been my largest and most rewarding project to date. Seeing it come to life has been emotional, as this project represents hundreds of hours of programming and asset development. I am deeply grateful to everyone who contributed to its success, and I am proud of everything we accomplished.