diff --git a/bridge/include/BridgeAPI.h b/bridge/include/BridgeAPI.h
index 80cc0331c..3d03fd9c2 100644
--- a/bridge/include/BridgeAPI.h
+++ b/bridge/include/BridgeAPI.h
@@ -35,7 +35,7 @@ namespace SourceMod {
 
 // Add 1 to the RHS of this expression to bump the intercom file
 // This is to prevent mismatching core/logic binaries
-static const uint32_t SM_LOGIC_MAGIC = 0x0F47C0DE - 50;
+static const uint32_t SM_LOGIC_MAGIC = 0x0F47C0DE - 51;
 
 } // namespace SourceMod
 
diff --git a/bridge/include/CoreProvider.h b/bridge/include/CoreProvider.h
index 887d80a08..1bc93108a 100644
--- a/bridge/include/CoreProvider.h
+++ b/bridge/include/CoreProvider.h
@@ -30,6 +30,7 @@
 #include <stddef.h>
 #include <stdint.h>
 #include <IAdminSystem.h>
+#include <amtl/am-function.h>
 
 namespace SourcePawn {
 class ISourcePawnEngine;
@@ -64,6 +65,9 @@ class IGameHelpers;
 class IMenuManager;
 struct DatabaseInfo;
 class IPlayerInfoBridge;
+class ICommandArgs;
+
+typedef ke::Lambda<bool(int client, const ICommandArgs*)> CommandFunc;
 
 class CoreProvider
 {
@@ -92,6 +96,9 @@ public:
 	virtual const char *GetCvarString(ConVar *cvar) = 0;
 	virtual bool GetCvarBool(ConVar* cvar) = 0;
 
+	// Command functions.
+	virtual void DefineCommand(const char *cmd, const char *help, const CommandFunc &callback) = 0;
+
 	// Game description functions.
 	virtual bool GetGameName(char *buffer, size_t maxlength) = 0;
 	virtual const char *GetGameDescription() = 0;
@@ -105,6 +112,7 @@ public:
 	virtual bool DescribePlayer(int index, const char **namep, const char **authp, int *useridp) = 0;
 	virtual void LogToGame(const char *message) = 0;
 	virtual void ConPrint(const char *message) = 0;
+	virtual void ConsolePrint(const char *fmt, ...) = 0;
 	virtual void ConsolePrintVa(const char *fmt, va_list ap) = 0;
 
 	// Game engine helper functions.
diff --git a/core/logic_bridge.cpp b/core/logic_bridge.cpp
index e4b9076d2..fcfe94993 100644
--- a/core/logic_bridge.cpp
+++ b/core/logic_bridge.cpp
@@ -564,6 +564,14 @@ void CoreProviderImpl::ConPrint(const char *message)
 	META_CONPRINT(message);
 }
 
+void CoreProviderImpl::ConsolePrint(const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	UTIL_ConsolePrintVa(fmt, ap);
+	va_end(ap);
+}
+
 void CoreProviderImpl::ConsolePrintVa(const char *message, va_list ap)
 {
 	UTIL_ConsolePrintVa(message, ap);
@@ -754,6 +762,39 @@ CoreProviderImpl::AddPostCommandHook(ConCommand *cmd, const CommandHook::Callbac
 	return hooks_.AddPostCommandHook(cmd, callback);
 }
 
+CoreProviderImpl::CommandImpl::CommandImpl(ConCommand *cmd, CommandHook *hook)
+: cmd_(cmd),
+  hook_(hook)
+{
+}
+
+CoreProviderImpl::CommandImpl::~CommandImpl()
+{
+	hook_ = nullptr;
+
+	g_SMAPI->UnregisterConCommandBase(g_PLAPI, cmd_);
+	delete [] const_cast<char *>(cmd_->GetHelpText());
+	delete [] const_cast<char *>(cmd_->GetName());
+	delete cmd_;
+}
+
+void
+CoreProviderImpl::DefineCommand(const char *name, const char *help, const CommandFunc &callback)
+{
+	char *new_name = sm_strdup(name);
+	char *new_help = sm_strdup(help);
+	int flags = 0;
+
+	auto ignore_callback = [] (DISPATCH_ARGS) -> void {
+	};
+
+	ConCommand *cmd = new ConCommand(new_name, ignore_callback, new_help, flags);
+	ke::Ref<CommandHook> hook = AddCommandHook(cmd, callback);
+
+	ke::Ref<CommandImpl> impl = new CommandImpl(cmd, hook);
+	commands_.append(impl);
+}
+
 void CoreProviderImpl::InitializeHooks()
 {
 	hooks_.Start();
@@ -766,6 +807,7 @@ void CoreProviderImpl::OnVSPReceived()
 
 void CoreProviderImpl::ShutdownHooks()
 {
+	commands_.clear();
 	hooks_.Shutdown();
 }
 
diff --git a/core/provider.h b/core/provider.h
index 4f592f902..8199a820d 100644
--- a/core/provider.h
+++ b/core/provider.h
@@ -59,11 +59,13 @@ public:
 	bool DescribePlayer(int index, const char **namep, const char **authp, int *useridp) override;
 	void LogToGame(const char *message) override;
 	void ConPrint(const char *message) override;
+	void ConsolePrint(const char *fmt, ...) override;
 	void ConsolePrintVa(const char *fmt, va_list ap) override;
 	int LoadMMSPlugin(const char *file, bool *ok, char *error, size_t maxlength) override;
 	void UnloadMMSPlugin(int id) override;
 	int QueryClientConVar(int client, const char *cvar) override;
 	bool IsClientConVarQueryingSupported() override;
+	void DefineCommand(const char *cmd, const char *help, const SourceMod::CommandFunc &callback) override;
 
 	ke::PassRef<CommandHook> AddCommandHook(ConCommand *cmd, const CommandHook::Callback &callback);
 	ke::PassRef<CommandHook> AddPostCommandHook(ConCommand *cmd, const CommandHook::Callback &callback);
@@ -76,6 +78,18 @@ private:
 	ke::Ref<ke::SharedLib> logic_;
 	LogicInitFunction logic_init_;
 	GameHooks hooks_;
+
+	struct CommandImpl : public ke::Refcounted<CommandImpl>
+	{
+	public:
+		CommandImpl(ConCommand *cmd, CommandHook *hook);
+		~CommandImpl();
+
+	private:
+		ConCommand *cmd_;
+		ke::Ref<CommandHook> hook_;
+	};
+	ke::Vector<ke::Ref<CommandImpl>> commands_;
 };
 
 extern CoreProviderImpl sCoreProviderImpl;