Some mods target the Mono version of the game, which is available by opting into the Steam beta branch "alternate"
Decompiled source of Crosshair Mod v1.0.0
S1_Crosshair.dll
Decompiled 3 days agousing System; using System.Diagnostics; using System.Reflection; using System.Resources; using System.Runtime.CompilerServices; using System.Runtime.Versioning; using System.Security; using System.Security.Permissions; using HarmonyLib; using Il2CppScheduleOne.UI; using MelonLoader; using Microsoft.CodeAnalysis; using S1_Crosshair; [assembly: CompilationRelaxations(8)] [assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)] [assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)] [assembly: MelonInfo(typeof(Core), "CrosshairMod", "1.0.0", "Cyberlight.Dev", null)] [assembly: MelonGame("TVGS", "Schedule I")] [assembly: TargetFramework(".NETCoreApp,Version=v6.0", FrameworkDisplayName = ".NET 6.0")] [assembly: AssemblyCompany("S1_Crosshair")] [assembly: AssemblyConfiguration("Release")] [assembly: AssemblyFileVersion("1.0.0.0")] [assembly: AssemblyInformationalVersion("1.0.0")] [assembly: AssemblyProduct("S1_Crosshair")] [assembly: AssemblyTitle("S1_Crosshair")] [assembly: NeutralResourcesLanguage("en-US")] [assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)] [assembly: AssemblyVersion("1.0.0.0")] [module: UnverifiableCode] [module: RefSafetyRules(11)] namespace Microsoft.CodeAnalysis { [CompilerGenerated] [Microsoft.CodeAnalysis.Embedded] internal sealed class EmbeddedAttribute : Attribute { } } namespace System.Runtime.CompilerServices { [CompilerGenerated] [Microsoft.CodeAnalysis.Embedded] [AttributeUsage(AttributeTargets.Module, AllowMultiple = false, Inherited = false)] internal sealed class RefSafetyRulesAttribute : Attribute { public readonly int Version; public RefSafetyRulesAttribute(int P_0) { Version = P_0; } } } namespace S1_Crosshair { public class Core : MelonMod { } [HarmonyPatch(typeof(HUD), "SetCrosshairVisible", new Type[] { typeof(bool) })] public static class CrosshairPatch { private static bool Prefix(bool __0) { return __0; } } }