diff --git a/Makefile b/Makefile
index d5e53987..405e61e5 100644
--- a/Makefile
+++ b/Makefile
@@ -534,7 +534,7 @@ SRC_DIRS := src src/engine src/game src/audio src/bass_audio src/menu src/buffer
 BIN_DIRS := bin bin/$(VERSION)
 
 # PC files
-SRC_DIRS += src/pc src/pc/gfx src/pc/audio src/pc/controller src/pc/fs src/pc/fs/packtypes src/pc/mods src/pc/network src/pc/network/packets src/pc/network/socket src/pc/utils src/pc/utils/miniz src/pc/djui src/pc/lua src/pc/lua/utils
+SRC_DIRS += src/pc src/pc/gfx src/pc/audio src/pc/controller src/pc/fs src/pc/fs/packtypes src/pc/mods src/pc/network src/pc/network/packets src/pc/network/socket src/pc/network/coopnet src/pc/utils src/pc/utils/miniz src/pc/djui src/pc/lua src/pc/lua/utils
 
 #ifeq ($(DISCORDRPC),1)
 #  SRC_DIRS += src/pc/discord
@@ -794,7 +794,7 @@ INCLUDE_DIRS := include $(BUILD_DIR) $(BUILD_DIR)/include src .
 ifeq ($(TARGET_N64),1)
   INCLUDE_DIRS += include/libc
 else
-  INCLUDE_DIRS += sound lib/lua/include $(EXTRA_INCLUDES)
+  INCLUDE_DIRS += sound lib/lua/include lib/coopnet/include $(EXTRA_INCLUDES)
 endif
 
 # Connfigure backend flags
@@ -971,6 +971,26 @@ else
   LDFLAGS += -Llib/lua/linux -l:liblua53.a -ldl
 endif
 
+# coopnet
+LDFLAGS += -Llib/coopnet/linux -l:libcoopnet.a -l:libjuice.a
+#ifeq ($(WINDOWS_BUILD),1)
+#  ifeq ($(TARGET_BITS), 32)
+#    LDFLAGS += -Llib/coopnet/win32 -l:libcoopnet.a
+#  else
+#    LDFLAGS += -Llib/coopnet/win64 -l:libcoopnet.a
+#  endif
+#else ifeq ($(OSX_BUILD),1)
+#  LDFLAGS += -L./lib/coopnet/mac/ -l coopnet
+#else ifeq ($(TARGET_RPI),1)
+#	ifneq (,$(findstring aarch64,$(machine)))
+#    LDFLAGS += -Llib/coopnet/linux -l:libcoopnet-arm64.a
+#  else
+#    LDFLAGS += -Llib/coopnet/linux -l:libcoopnet-arm.a
+#  endif
+#else
+#  LDFLAGS += -Llib/coopnet/linux -l:libcoopnet.a
+#endif
+
 # Network/Discord/Bass (ugh, needs cleanup)
 ifeq ($(WINDOWS_BUILD),1)
   LDFLAGS += -L"ws2_32" -lwsock32
diff --git a/lang/English.ini b/lang/English.ini
index 20d539ca..40fcadd6 100644
--- a/lang/English.ini
+++ b/lang/English.ini
@@ -176,6 +176,7 @@ SERVER_TITLE = "SERVER"
 HOST_TITLE = "HOST"
 DISCORD = "Discord"
 DIRECT_CONNECTION = "Direct Connection"
+COOPNET = "CoopNet"
 NETWORK_SYSTEM = "Network system"
 PORT = "Port"
 SAVE_SLOT = "Save Slot"
diff --git a/lang/French.ini b/lang/French.ini
index 13657930..0e092ba4 100644
--- a/lang/French.ini
+++ b/lang/French.ini
@@ -176,6 +176,7 @@ SERVER_TITLE = "SERVEUR"
 HOST_TITLE = "HÉBERGER"
 DISCORD = "Discord"
 DIRECT_CONNECTION = "Connexion Directe"
+COOPNET = "CoopNet"
 NETWORK_SYSTEM = "Mode d'hébergement"
 PORT = "Port"
 SAVE_SLOT = "Sauvegarde"
diff --git a/lang/German.ini b/lang/German.ini
index 56695824..8c667f0f 100644
--- a/lang/German.ini
+++ b/lang/German.ini
@@ -176,6 +176,7 @@ SERVER_TITLE = "SERVER"
 HOST_TITLE = "VERANSTALTEN"
 DISCORD = "Discord"
 DIRECT_CONNECTION = "Direkte Verbindung"
+COOPNET = "CoopNet"
 NETWORK_SYSTEM = "Netzwerk-System"
 PORT = "Port"
 SAVE_SLOT = "Save Slot"
diff --git a/lang/Portuguese.ini b/lang/Portuguese.ini
index d4ccaf90..60be7ea1 100644
--- a/lang/Portuguese.ini
+++ b/lang/Portuguese.ini
@@ -175,6 +175,7 @@ AMOUNT_OF_PLAYERS = "Quantidade de jogadores"
 SERVER_TITLE = "SERVIDOR"
 HOST_TITLE = "HOSTEAR"
 DISCORD = "Discord"
+COOPNET = "CoopNet"
 DIRECT_CONNECTION = "Conexão Direta"
 NETWORK_SYSTEM = "Sistema de Rede"
 PORT = "Porta"
diff --git a/lang/Spanish.ini b/lang/Spanish.ini
index e0f832fa..19397856 100644
--- a/lang/Spanish.ini
+++ b/lang/Spanish.ini
@@ -175,6 +175,7 @@ AMOUNT_OF_PLAYERS = "Número de jugadores"
 SERVER_TITLE = "SERVIDOR"
 HOST_TITLE = "ALOJAR"
 DISCORD = "Discord"
+COOPNET = "CoopNet"
 DIRECT_CONNECTION = "Conexión Directa"
 NETWORK_SYSTEM = "Modo de conexión"
 PORT = "Puerto"
diff --git a/lib/coopnet/include/libcoopnet.h b/lib/coopnet/include/libcoopnet.h
new file mode 100644
index 00000000..3a760e06
--- /dev/null
+++ b/lib/coopnet/include/libcoopnet.h
@@ -0,0 +1,61 @@
+#ifndef LIBCOOPNET_H
+#define LIBCOOPNET_H
+
+#if defined(__cplusplus) 
+#include <cstdint>
+extern "C" {
+#endif
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef enum {
+    COOPNET_OK,
+    COOPNET_FAILED,
+    COOPNET_DISCONNECTED,
+} CoopNetRc;
+
+enum MPacketErrorNumber {
+    MERR_NONE,
+    MERR_LOBBY_NOT_FOUND,
+    MERR_LOBBY_JOIN_FULL,
+    MERR_LOBBY_JOIN_FAILED,
+    MERR_MAX,
+};
+
+typedef struct {
+    void (*OnConnected)(uint64_t aUserId);
+    void (*OnDisconnected)(void);
+    void (*OnLobbyCreated)(uint64_t aLobbyId, const char* aGame, const char* aVersion, const char* aTitle, uint16_t aMaxConnections);
+    void (*OnLobbyJoined)(uint64_t aLobbyId, uint64_t aUserId, uint64_t aOwnerId);
+    void (*OnLobbyLeft)(uint64_t aLobbyId, uint64_t aUserId);
+    void (*OnLobbyListGot)(uint64_t aLobbyId, uint64_t aOwnerId, uint16_t aConnections, uint16_t aMaxConnections, const char* aGame, const char* aVersion, const char* aTitle);
+    void (*OnReceive)(uint64_t aFromUserId, const uint8_t* aData, uint64_t aSize);
+    void (*OnError)(enum MPacketErrorNumber aErrorNumber);
+    void (*OnPeerConnected)(uint64_t aPeerId);
+    void (*OnPeerDisconnected)(uint64_t aPeerId);
+} CoopNetCallbacks;
+
+typedef struct {
+    bool SkipWinsockInit;
+} CoopNetSettings;
+
+extern CoopNetCallbacks gCoopNetCallbacks;
+extern CoopNetSettings gCoopNetSettings;
+
+bool coopnet_is_connected(void);
+CoopNetRc coopnet_begin(const char* aHost, uint32_t aPort);
+CoopNetRc coopnet_shutdown(void);
+CoopNetRc coopnet_update(void);
+CoopNetRc coopnet_lobby_create(const char* aGame, const char* aVersion, const char* aTitle, uint16_t aMaxConnections);
+CoopNetRc coopnet_lobby_join(uint64_t aLobbyId);
+CoopNetRc coopnet_lobby_leave(uint64_t aLobbyId);
+CoopNetRc coopnet_lobby_list_get(const char* aGame);
+CoopNetRc coopnet_send(const uint8_t* aData, uint64_t aDataLength);
+CoopNetRc coopnet_send_to(uint64_t aPeerId, const uint8_t* aData, uint64_t aDataLength);
+CoopNetRc coopnet_unpeer(uint64_t aPeerId);
+
+#if defined(__cplusplus) 
+}
+#endif
+#endif
\ No newline at end of file
diff --git a/src/pc/djui/djui_panel_host.c b/src/pc/djui/djui_panel_host.c
index 857adae5..98ee7c72 100644
--- a/src/pc/djui/djui_panel_host.c
+++ b/src/pc/djui/djui_panel_host.c
@@ -12,16 +12,16 @@
 #include "pc/configfile.h"
 #include "pc/cheats.h"
 
-#ifdef DISCORD_SDK
-#define DJUI_HOST_NS_IS_SOCKET (configNetworkSystem == 1)
-#else
-#define DJUI_HOST_NS_IS_SOCKET (true)
-#endif
-
 struct DjuiInputbox* sInputboxPort = NULL;
 
 static void djui_panel_host_network_system_change(UNUSED struct DjuiBase* base) {
-    djui_base_set_enabled(&sInputboxPort->base, DJUI_HOST_NS_IS_SOCKET);
+#ifndef DISCORD_SDK
+    struct DjuiSelectionbox* selectionbox = (struct DjuiSelectionbox*) base;
+    if (selectionbox->value == NS_DISCORD) {
+        selectionbox->value = NS_SOCKET;
+    }
+#endif
+    djui_base_set_enabled(&sInputboxPort->base, (configNetworkSystem == NS_SOCKET));
 }
 
 static bool djui_panel_host_port_valid(void) {
@@ -77,15 +77,12 @@ void djui_panel_host_create(struct DjuiBase* caller) {
             : DLANG(HOST, HOST_TITLE));
     struct DjuiBase* body = djui_three_panel_get_body(panel);
     {
-#ifdef DISCORD_SDK
-        char* nChoices[2] = { DLANG(HOST, DISCORD), DLANG(HOST, DIRECT_CONNECTION) };
-        struct DjuiSelectionbox* selectionbox1 = djui_selectionbox_create(body, DLANG(HOST, NETWORK_SYSTEM), nChoices, 2, &configNetworkSystem, djui_panel_host_network_system_change);
+        char* nChoices[] = { DLANG(HOST, DISCORD), DLANG(HOST, DIRECT_CONNECTION), DLANG(HOST, COOPNET) };
+        struct DjuiSelectionbox* selectionbox1 = djui_selectionbox_create(body, DLANG(HOST, NETWORK_SYSTEM), nChoices, 3, &configNetworkSystem, djui_panel_host_network_system_change);
         if (gNetworkType == NT_SERVER) {
             djui_base_set_enabled(&selectionbox1->base, false);
         }
 
-#endif
-
         struct DjuiRect* rect1 = djui_rect_container_create(body, 32);
         {
             struct DjuiText* text1 = djui_text_create(&rect1->base, DLANG(HOST, PORT));
@@ -107,10 +104,8 @@ void djui_panel_host_create(struct DjuiBase* caller) {
             djui_interactable_hook_value_change(&inputbox1->base, djui_panel_host_port_text_change);
             if (gNetworkType == NT_SERVER) {
                 djui_base_set_enabled(&inputbox1->base, false);
-#ifdef DISCORD_SDK
             } else {
-                djui_base_set_enabled(&inputbox1->base, DJUI_HOST_NS_IS_SOCKET);
-#endif
+                djui_base_set_enabled(&inputbox1->base, (configNetworkSystem == NS_SOCKET));
             }
             sInputboxPort = inputbox1;
         }
diff --git a/src/pc/djui/djui_panel_host_message.c b/src/pc/djui/djui_panel_host_message.c
index c7850494..da44d9c9 100644
--- a/src/pc/djui/djui_panel_host_message.c
+++ b/src/pc/djui/djui_panel_host_message.c
@@ -22,15 +22,10 @@ void djui_panel_do_host(void) {
     update_all_mario_stars();
 
 #ifndef DISCORD_SDK
-    configNetworkSystem = 1;
-    network_set_system(NS_SOCKET);
-#else
-    if (configNetworkSystem == 0) {
-        network_set_system(NS_DISCORD);
-    } else {
-        network_set_system(NS_SOCKET);
-    }
+    if (configNetworkSystem == NS_DISCORD) { configNetworkSystem = NS_COOPNET; }
 #endif
+    if (configNetworkSystem >= NS_MAX) { configNetworkSystem = NS_MAX; }
+    network_set_system(configNetworkSystem);
 
     network_init(NT_SERVER);
     djui_panel_modlist_create(NULL);
@@ -56,14 +51,11 @@ void djui_panel_host_message_create(struct DjuiBase* caller) {
     char* warningMessage = NULL;
     bool hideHostButton = false;
 
-#ifdef DISCORD_SDK
-    if (!configNetworkSystem) {
+    if (configNetworkSystem == NS_DISCORD) {
         warningLines = gDiscordFailed ? 5 : 13;
         warningMessage = gDiscordFailed ? DLANG(HOST_MESSAGE, WARN_DISCORD2) : DLANG(HOST_MESSAGE, WARN_DISCORD);
         hideHostButton = gDiscordFailed;
-    } else
-#endif
-    {
+    } else {
         warningLines = 5;
         warningMessage = calloc(256, sizeof(char));
         sprintf(warningMessage, DLANG(HOST_MESSAGE, WARN_SOCKET), configHostPort);
@@ -93,10 +85,7 @@ void djui_panel_host_message_create(struct DjuiBase* caller) {
     }
 
     djui_panel_add(caller, panel, NULL);
-#ifdef DISCORD_SDK
-    if (configNetworkSystem)
-#endif
-    {
+    if (configNetworkSystem != NS_DISCORD) {
         free(warningMessage);
     }
 }
diff --git a/src/pc/djui/djui_panel_join.c b/src/pc/djui/djui_panel_join.c
index b9ddbf59..bdd7fb01 100644
--- a/src/pc/djui/djui_panel_join.c
+++ b/src/pc/djui/djui_panel_join.c
@@ -143,7 +143,7 @@ void djui_panel_join_do_join(struct DjuiBase* caller) {
     }
     network_reset_reconnect_and_rehost();
     djui_panel_join_ip_text_set_new();
-    network_set_system(NS_SOCKET);
+    network_set_system(NS_COOPNET); // DO NOT COMMIT
     network_init(NT_CLIENT);
     djui_panel_join_message_create(caller);
 }
diff --git a/src/pc/network/coopnet/coopnet.c b/src/pc/network/coopnet/coopnet.c
new file mode 100644
index 00000000..7d5cc828
--- /dev/null
+++ b/src/pc/network/coopnet/coopnet.c
@@ -0,0 +1,152 @@
+#include "libcoopnet.h"
+#include "coopnet.h"
+#include "pc/network/network.h"
+#include "pc/debuglog.h"
+
+#define HOST "localhost"
+#define PORT 34197
+
+static uint64_t sLocalUserId = 0;
+static uint64_t sLocalLobbyId = 0;
+static uint64_t sLocalLobbyOwnerId = 0;
+static uint64_t sNetworkUserIds[MAX_PLAYERS] = { 0 };
+static enum NetworkType sNetworkType;
+
+static u8 coopnet_user_id_to_local_index(uint64_t userId) {
+    for (int i = 1; i < MAX_PLAYERS; i++) {
+        if (gNetworkPlayers[i].connected && sNetworkUserIds[i] == userId) {
+            return i;
+        }
+    }
+    return UNKNOWN_LOCAL_INDEX;
+}
+
+static void coopnet_on_connected(uint64_t userId) {
+    sLocalUserId = userId;
+    if (sNetworkType == NT_SERVER) {
+        coopnet_lobby_create("sm64ex-coop", "beta 999", "n/a", 16);
+    } else {
+        coopnet_lobby_join(1);
+    }
+}
+
+static void coopnet_on_peer_connected(UNUSED uint64_t peerId) {
+}
+
+static void coopnet_on_peer_disconnected(uint64_t peerId) {
+    u8 localIndex = coopnet_user_id_to_local_index(peerId);
+    if (localIndex != UNKNOWN_LOCAL_INDEX && gNetworkPlayers[localIndex].connected) {
+        network_player_disconnected(gNetworkPlayers[localIndex].globalIndex);
+    }
+}
+
+static void coopnet_on_receive(uint64_t userId, const uint8_t* data, uint64_t dataLength) {
+    sNetworkUserIds[0] = userId;
+    u8 localIndex = coopnet_user_id_to_local_index(userId);
+    network_receive(localIndex, &userId, (u8*)data, dataLength);
+}
+
+static void coopnet_on_lobby_joined(uint64_t lobbyId, uint64_t userId, uint64_t ownerId) {
+    LOG_INFO("coopnet_on_lobby_joined!");
+    sNetworkUserIds[0] = ownerId;
+    sLocalLobbyId = lobbyId;
+    sLocalLobbyOwnerId = ownerId;
+    if (userId == sLocalUserId && sNetworkType == NT_CLIENT) {
+        network_send_mod_list_request();
+    }
+}
+
+
+static void coopnet_on_lobby_left(uint64_t lobbyId, uint64_t userId) {
+    LOG_INFO("coopnet_on_lobby_left!");
+    if (lobbyId == sLocalLobbyId && userId == sLocalUserId) {
+        network_shutdown(false, false, true);
+    }
+}
+
+static bool ns_coopnet_initialize(enum NetworkType networkType) {
+    if (coopnet_is_connected()) {
+        coopnet_shutdown();
+    }
+
+    gCoopNetCallbacks.OnConnected = coopnet_on_connected;
+    gCoopNetCallbacks.OnReceive = coopnet_on_receive;
+    gCoopNetCallbacks.OnLobbyJoined = coopnet_on_lobby_joined;
+    gCoopNetCallbacks.OnLobbyLeft = coopnet_on_lobby_left;
+    gCoopNetCallbacks.OnPeerConnected = coopnet_on_peer_connected;
+    gCoopNetCallbacks.OnPeerDisconnected = coopnet_on_peer_disconnected;
+    sNetworkType = networkType;
+
+    return (coopnet_begin(HOST, PORT) == COOPNET_OK);
+}
+
+static s64 ns_coopnet_get_id(u8 localIndex) {
+    if (localIndex == 0) { return (s64)sLocalUserId; }
+    return (s64)sNetworkUserIds[localIndex];
+}
+
+static char* ns_coopnet_get_id_str(u8 localIndex) {
+    static char id_str[22] = { 0 };
+    if (localIndex == UNKNOWN_LOCAL_INDEX) {
+        snprintf(id_str, 22, "???");
+    } else {
+        snprintf(id_str, 22, "%lld", (long long int)ns_coopnet_get_id(localIndex));
+    }
+    return id_str;
+}
+
+static void ns_coopnet_save_id(u8 localIndex, s64 networkId) {
+    SOFT_ASSERT(localIndex > 0);
+    SOFT_ASSERT(localIndex < MAX_PLAYERS);
+    sNetworkUserIds[localIndex] = (networkId == 0) ? sNetworkUserIds[0] : (u64)networkId;
+}
+
+static void ns_coopnet_clear_id(u8 localIndex) {
+    if (localIndex == 0) { return; }
+    SOFT_ASSERT(localIndex < MAX_PLAYERS);
+    sNetworkUserIds[localIndex] = 0;
+}
+
+static void* ns_coopnet_dup_addr(u8 localIndex) {
+    void* address = malloc(sizeof(u64));
+    memcpy(address, &sNetworkUserIds[localIndex], sizeof(u64));
+    return address;
+}
+
+static bool ns_coopnet_match_addr(void* addr1, void* addr2) {
+    return !memcmp(addr1, addr2, sizeof(u64));
+}
+
+static void ns_coopnet_update(void) {
+    coopnet_update();
+}
+
+static int ns_coopnet_network_send(u8 localIndex, void* address, u8* data, u16 dataLength) {
+    if (!coopnet_is_connected()) { return 1; }
+    //if (gCurLobbyId == 0) { return 2; }
+
+    u64 userId = sNetworkUserIds[localIndex];
+    if (localIndex == 0 && address != NULL) { userId = *(u64*)address; }
+    coopnet_send_to(userId, data, dataLength);
+
+    return 0;
+}
+
+static void ns_coopnet_shutdown(void) {
+    coopnet_shutdown();
+}
+
+struct NetworkSystem gNetworkSystemCoopNet = {
+    .initialize = ns_coopnet_initialize,
+    .get_id     = ns_coopnet_get_id,
+    .get_id_str = ns_coopnet_get_id_str,
+    .save_id    = ns_coopnet_save_id,
+    .clear_id   = ns_coopnet_clear_id,
+    .dup_addr   = ns_coopnet_dup_addr,
+    .match_addr = ns_coopnet_match_addr,
+    .update     = ns_coopnet_update,
+    .send       = ns_coopnet_network_send,
+    .shutdown   = ns_coopnet_shutdown,
+    .requireServerBroadcast = false,
+    .name       = "CoopNet",
+};
diff --git a/src/pc/network/coopnet/coopnet.h b/src/pc/network/coopnet/coopnet.h
new file mode 100644
index 00000000..92cf1a36
--- /dev/null
+++ b/src/pc/network/coopnet/coopnet.h
@@ -0,0 +1,6 @@
+#ifndef COOPNET_H
+#define COOPNET_H
+
+extern struct NetworkSystem gNetworkSystemCoopNet;
+
+#endif
\ No newline at end of file
diff --git a/src/pc/network/network.c b/src/pc/network/network.c
index 8e705f17..77d62668 100644
--- a/src/pc/network/network.c
+++ b/src/pc/network/network.c
@@ -1,4 +1,5 @@
 #include "socket/socket.h"
+#include "coopnet/coopnet.h"
 #include <stdio.h>
 #include "network.h"
 #include "object_fields.h"
@@ -89,6 +90,7 @@ void network_set_system(enum NetworkSystemType nsType) {
 #ifdef DISCORD_SDK
         case NS_DISCORD: gNetworkSystem = &gNetworkSystemDiscord; break;
 #endif
+        case NS_COOPNET: gNetworkSystem = &gNetworkSystemCoopNet; break;
         default: LOG_ERROR("Unknown network system: %d", nsType);
     }
 }
diff --git a/src/pc/network/network.h b/src/pc/network/network.h
index b2f15471..7af402ce 100644
--- a/src/pc/network/network.h
+++ b/src/pc/network/network.h
@@ -37,6 +37,8 @@ extern struct MarioState gMarioStates[];
 enum NetworkSystemType {
     NS_SOCKET,
     NS_DISCORD,
+    NS_COOPNET,
+    NS_MAX,
 };
 
 struct NetworkSystem {