diff --git a/rpcsx-os/CMakeLists.txt b/rpcsx-os/CMakeLists.txt
index ed732150f..93b70f0aa 100644
--- a/rpcsx-os/CMakeLists.txt
+++ b/rpcsx-os/CMakeLists.txt
@@ -36,6 +36,11 @@ add_executable(rpcsx-os
   iodev/hdmi.cpp
   iodev/mbus_av.cpp
   iodev/scanin.cpp
+  iodev/s3da.cpp
+  iodev/gbase.cpp
+  iodev/devstat.cpp
+  iodev/devact.cpp
+  iodev/devctl.cpp
 
   main.cpp
   backtrace.cpp
diff --git a/rpcsx-os/io-devices.hpp b/rpcsx-os/io-devices.hpp
index 3bba5e821..bc1328321 100644
--- a/rpcsx-os/io-devices.hpp
+++ b/rpcsx-os/io-devices.hpp
@@ -35,3 +35,8 @@ IoDevice *createAVControlCharacterDevice();
 IoDevice *createHDMICharacterDevice();
 IoDevice *createMBusAVCharacterDevice();
 IoDevice *createScaninCharacterDevice();
+IoDevice *createS3DACharacterDevice();
+IoDevice *createGbaseCharacterDevice();
+IoDevice *createDevStatCharacterDevice();
+IoDevice *createDevCtlCharacterDevice();
+IoDevice *createDevActCharacterDevice();
diff --git a/rpcsx-os/iodev/dce.cpp b/rpcsx-os/iodev/dce.cpp
index 17343a01a..5599e86d1 100644
--- a/rpcsx-os/iodev/dce.cpp
+++ b/rpcsx-os/iodev/dce.cpp
@@ -198,6 +198,9 @@ static orbis::ErrorCode dce_ioctl(orbis::File *file, std::uint64_t request,
     } else if (args->id == 33) { // adjust color
       std::printf("adjust color\n");
       return {};
+    } else if (args->id == 0x1e) {
+      // TODO
+      return{};
     } else if (args->id != 0 && args->id != 1) { // used during open/close
       ORBIS_LOG_NOTICE("dce: UNIMPLEMENTED FlipControl", args->id, args->arg2,
                        args->ptr, args->size);
diff --git a/rpcsx-os/iodev/devact.cpp b/rpcsx-os/iodev/devact.cpp
new file mode 100644
index 000000000..ae51e5f3e
--- /dev/null
+++ b/rpcsx-os/iodev/devact.cpp
@@ -0,0 +1,45 @@
+#include "io-device.hpp"
+#include "orbis/KernelAllocator.hpp"
+#include "orbis/file.hpp"
+#include "orbis/utils/Logs.hpp"
+
+struct DevActFile : orbis::File {};
+
+static orbis::ErrorCode devact_ioctl(orbis::File *file, std::uint64_t request,
+                                  void *argp, orbis::Thread *thread) {
+
+  if (request == 0x40105303) {
+    // is expired
+    struct Param {
+      std::uint32_t unk0;
+      std::uint32_t unk1;
+      std::uint32_t unk2;
+      std::uint32_t unk3;
+    };
+    auto param = (Param *)argp;
+    *param = {};
+    param->unk0 = 1;
+    return{};
+  }
+  ORBIS_LOG_FATAL("Unhandled devact ioctl", request);
+  return {};
+}
+
+static const orbis::FileOps fileOps = {
+    .ioctl = devact_ioctl,
+};
+
+struct DevActDevice : IoDevice {
+  orbis::ErrorCode open(orbis::Ref<orbis::File> *file, const char *path,
+                        std::uint32_t flags, std::uint32_t mode,
+                        orbis::Thread *thread) override {
+    auto newFile = orbis::knew<DevActFile>();
+    newFile->ops = &fileOps;
+    newFile->device = this;
+
+    *file = newFile;
+    return {};
+  }
+};
+
+IoDevice *createDevActCharacterDevice() { return orbis::knew<DevActDevice>(); }
diff --git a/rpcsx-os/iodev/devctl.cpp b/rpcsx-os/iodev/devctl.cpp
new file mode 100644
index 000000000..2a703b51e
--- /dev/null
+++ b/rpcsx-os/iodev/devctl.cpp
@@ -0,0 +1,32 @@
+#include "io-device.hpp"
+#include "orbis/KernelAllocator.hpp"
+#include "orbis/file.hpp"
+#include "orbis/utils/Logs.hpp"
+
+struct DevCtlFile : orbis::File {};
+
+static orbis::ErrorCode devctl_ioctl(orbis::File *file, std::uint64_t request,
+                                  void *argp, orbis::Thread *thread) {
+
+  ORBIS_LOG_FATAL("Unhandled devctl ioctl", request);
+  return {};
+}
+
+static const orbis::FileOps fileOps = {
+    .ioctl = devctl_ioctl,
+};
+
+struct DevCtlDevice : IoDevice {
+  orbis::ErrorCode open(orbis::Ref<orbis::File> *file, const char *path,
+                        std::uint32_t flags, std::uint32_t mode,
+                        orbis::Thread *thread) override {
+    auto newFile = orbis::knew<DevCtlFile>();
+    newFile->ops = &fileOps;
+    newFile->device = this;
+
+    *file = newFile;
+    return {};
+  }
+};
+
+IoDevice *createDevCtlCharacterDevice() { return orbis::knew<DevCtlDevice>(); }
diff --git a/rpcsx-os/iodev/devstat.cpp b/rpcsx-os/iodev/devstat.cpp
new file mode 100644
index 000000000..b79326526
--- /dev/null
+++ b/rpcsx-os/iodev/devstat.cpp
@@ -0,0 +1,32 @@
+#include "io-device.hpp"
+#include "orbis/KernelAllocator.hpp"
+#include "orbis/file.hpp"
+#include "orbis/utils/Logs.hpp"
+
+struct DevStatFile : orbis::File {};
+
+static orbis::ErrorCode devstat_ioctl(orbis::File *file, std::uint64_t request,
+                                  void *argp, orbis::Thread *thread) {
+
+  ORBIS_LOG_FATAL("Unhandled devstat ioctl", request);
+  return {};
+}
+
+static const orbis::FileOps fileOps = {
+    .ioctl = devstat_ioctl,
+};
+
+struct DevStatDevice : IoDevice {
+  orbis::ErrorCode open(orbis::Ref<orbis::File> *file, const char *path,
+                        std::uint32_t flags, std::uint32_t mode,
+                        orbis::Thread *thread) override {
+    auto newFile = orbis::knew<DevStatFile>();
+    newFile->ops = &fileOps;
+    newFile->device = this;
+
+    *file = newFile;
+    return {};
+  }
+};
+
+IoDevice *createDevStatCharacterDevice() { return orbis::knew<DevStatDevice>(); }
diff --git a/rpcsx-os/iodev/gbase.cpp b/rpcsx-os/iodev/gbase.cpp
new file mode 100644
index 000000000..3ea134c35
--- /dev/null
+++ b/rpcsx-os/iodev/gbase.cpp
@@ -0,0 +1,32 @@
+#include "io-device.hpp"
+#include "orbis/KernelAllocator.hpp"
+#include "orbis/file.hpp"
+#include "orbis/utils/Logs.hpp"
+
+struct GbaseFile : orbis::File {};
+
+static orbis::ErrorCode gbase_ioctl(orbis::File *file, std::uint64_t request,
+                                  void *argp, orbis::Thread *thread) {
+
+  ORBIS_LOG_FATAL("Unhandled gbase ioctl", request);
+  return {};
+}
+
+static const orbis::FileOps fileOps = {
+    .ioctl = gbase_ioctl,
+};
+
+struct GbaseDevice : IoDevice {
+  orbis::ErrorCode open(orbis::Ref<orbis::File> *file, const char *path,
+                        std::uint32_t flags, std::uint32_t mode,
+                        orbis::Thread *thread) override {
+    auto newFile = orbis::knew<GbaseFile>();
+    newFile->ops = &fileOps;
+    newFile->device = this;
+
+    *file = newFile;
+    return {};
+  }
+};
+
+IoDevice *createGbaseCharacterDevice() { return orbis::knew<GbaseDevice>(); }
diff --git a/rpcsx-os/iodev/s3da.cpp b/rpcsx-os/iodev/s3da.cpp
new file mode 100644
index 000000000..043d5b5d9
--- /dev/null
+++ b/rpcsx-os/iodev/s3da.cpp
@@ -0,0 +1,32 @@
+#include "io-device.hpp"
+#include "orbis/KernelAllocator.hpp"
+#include "orbis/file.hpp"
+#include "orbis/utils/Logs.hpp"
+
+struct S3DAFile : orbis::File {};
+
+static orbis::ErrorCode s3da_ioctl(orbis::File *file, std::uint64_t request,
+                                  void *argp, orbis::Thread *thread) {
+
+  ORBIS_LOG_FATAL("Unhandled s3da ioctl", request);
+  return {};
+}
+
+static const orbis::FileOps fileOps = {
+    .ioctl = s3da_ioctl,
+};
+
+struct S3DADevice : IoDevice {
+  orbis::ErrorCode open(orbis::Ref<orbis::File> *file, const char *path,
+                        std::uint32_t flags, std::uint32_t mode,
+                        orbis::Thread *thread) override {
+    auto newFile = orbis::knew<S3DAFile>();
+    newFile->ops = &fileOps;
+    newFile->device = this;
+
+    *file = newFile;
+    return {};
+  }
+};
+
+IoDevice *createS3DACharacterDevice() { return orbis::knew<S3DADevice>(); }
diff --git a/rpcsx-os/main.cpp b/rpcsx-os/main.cpp
index afca426b6..967ec2ba2 100644
--- a/rpcsx-os/main.cpp
+++ b/rpcsx-os/main.cpp
@@ -369,6 +369,7 @@ static void ps4InitDev() {
   rx::vfs::addDevice("da0x13.crypt", createHddCharacterDevice());
   rx::vfs::addDevice("da0x14.crypt", createHddCharacterDevice());
   rx::vfs::addDevice("da0x15", createHddCharacterDevice());
+  rx::vfs::addDevice("da0x15.crypt", createHddCharacterDevice());
   rx::vfs::addDevice("notification0", createNotificationCharacterDevice(0));
   rx::vfs::addDevice("notification1", createNotificationCharacterDevice(1));
   rx::vfs::addDevice("notification2", createNotificationCharacterDevice(2));
@@ -376,12 +377,21 @@ static void ps4InitDev() {
   rx::vfs::addDevice("notification4", createNotificationCharacterDevice(4));
   rx::vfs::addDevice("notification5", createNotificationCharacterDevice(5));
   rx::vfs::addDevice("aout0", createAoutCharacterDevice());
+  rx::vfs::addDevice("aout1", createAoutCharacterDevice());
+  rx::vfs::addDevice("aout2", createAoutCharacterDevice());
   rx::vfs::addDevice("av_control", createAVControlCharacterDevice());
   rx::vfs::addDevice("hdmi", createHDMICharacterDevice());
   rx::vfs::addDevice("mbus_av", createMBusAVCharacterDevice());
   rx::vfs::addDevice("scanin", createScaninCharacterDevice());
+  rx::vfs::addDevice("s3da", createS3DACharacterDevice());
+  rx::vfs::addDevice("gbase", createGbaseCharacterDevice());
+  rx::vfs::addDevice("devstat", createDevStatCharacterDevice());
+  rx::vfs::addDevice("devact", createDevActCharacterDevice());
+  rx::vfs::addDevice("devctl", createDevCtlCharacterDevice());
 
-  orbis::g_context.shmDevice = createShmDevice();
+  auto shm = createShmDevice();
+  rx::vfs::addDevice("shm", shm);
+  orbis::g_context.shmDevice = shm;
   orbis::g_context.blockpoolDevice = createBlockPoolDevice();
 }