The latest articles on DEV Community by Louis Cerclé-Cheminel (@neutronbzh). https://dev.to/neutronbzh https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3153892%2Fe14f731a-a8e4-4c3e-8e23-9a1382d30216.jpeg https://dev.to/neutronbzh en Louis Cerclé-Cheminel Mon, 24 Aug 2026 14:29:57 +0000 https://dev.to/neutronbzh/building-a-suite-of-c-server-plugins-for-counter-strike-2-1g8 https://dev.to/neutronbzh/building-a-suite-of-c-server-plugins-for-counter-strike-2-1g8 <p>I run a small CS2 Retake community server, and over the past few months I ended up writing (and extending) enough <a href="https://github.com/roflmuffin/CounterStrikeSharp" rel="noopener noreferrer">CounterStrikeSharp</a> plugins to call it a suite. Sharing the writeup in case it's useful to anyone else doing Source 2 / CS2 server-side modding in C#.</p> <h2> The stack </h2> <p>CounterStrikeSharp is a .NET 8 scripting layer on top of a Metamod:Source plugin — you write plugins in C#, hook game events, and manipulate entities through a managed API. It's the dominant framework for CS2 server plugins right now (SourceMod's SourcePawn predates CS2 and hasn't caught up to it there).</p> <h2> What's in the suite </h2> <p><strong>CS2-RETAKE</strong> is the core piece: a full retake gamemode with a persisted weapon-selection menu (per player × team × round-type, backed by SQLite or Postgres), AWP restrictions, team scramble/queue logic, and a built-in InstaDefuse implementation ported from <a href="https://github.com/B3none/cs2-instadefuse" rel="noopener noreferrer">B3none/cs2-instadefuse</a>. It's a fork of <a href="https://github.com/LordFetznschaedl/CS2Retake" rel="noopener noreferrer">LordFetznschaedl/CS2Retake</a> — full credit in the README, GPL-3.0 throughout.</p> <p>Around that core, a few companion plugins that each solve one problem and stay out of each other's way:</p> <ul> <li> <strong>CS2-SpawnEditor</strong> — an in-game visual editor for retake spawn points (CBeam pillar markers, nearest-spawn highlighting) so you don't hand-edit spawn JSON.</li> <li> <strong>CS2-BreakerAndOpenDoor</strong> — opens doors and breaks windows/vents/breakables at round start so every round starts from the same map state. Multi-pass with fallback because Source 2 entity timing during round start is not always cooperative.</li> <li> <strong>CS2-Antibait</strong> — through-wall glow highlighting for admins, with an auto last-CT-alive mode.</li> <li> <strong>CS2-STATPLAY</strong> — MySQL-backed stats (kills, rounds, objectives, grenades) aggregated at lifetime/session/map granularity, plus chat commands and milestone webhooks.</li> <li> <strong>CS2-AntiSlow</strong>, <strong>CS2-AdminTools</strong> — smaller QoL/admin tools.</li> </ul> <p>One thing worth calling out: getting two plugins that both create entities on <code>EventRoundStart</code> to not crash into each other. Antibait creates glow entities on round start; BreakerAndOpenDoor scans/destroys entities in the same window. Creating a <code>CDynamicProp</code> while another plugin's entity scan is still in flight produces a <code>WriteEnterPVS: GetEntServerClass failed</code> server crash. Antibait gates entity creation on <code>EventRoundFreezeEnd</code> instead, which fires after the scan window closes — a small thing, but the kind of cross-plugin timing bug you only find by running plugins together on a live server.</p> <h2> Links </h2> <p>Suite overview with a compatibility diagram: <a href="https://github.com/NeuTroNBZh/CS2-Retake-Suite" rel="noopener noreferrer">https://github.com/NeuTroNBZh/CS2-Retake-Suite</a></p> <p>Everything is MIT or GPL-3.0, tagged releases with install instructions in each README. Happy to answer questions about CounterStrikeSharp internals or the retake-specific stuff.</p> csharp gamedev opensource showdev