RealSub
Released 27 October 2026 · PC · Free To Play, Utilities
Live subtitles for Japanese video that has none. Recognition runs locally — from 2 GB of VRAM on a GTX 10-series card (4 GB is better), Vulkan or CPU fallback without an NVIDIA GPU. Capture your whole system, or just one app. Free app = full live transcription; DLC unlocks translation and export.
Story
Turn audio you cannot follow into subtitles you can read RealSub is a live subtitle tool for Windows. It captures whatever your PC is playing — or the sound of one specific app you pick — recognizes the speech locally, optionally translates it, and shows the result in a floating subtitle bar on top of everything else. Japanese video with no subtitles, foreign-language streams, lectures, podcasts, interviews, game dialogue: if the sound comes out of this PC, it can be subtitled. Including the places a player plugin can never reach. Hardware first, because the bar is lower than you expect Starts at 2 GB of VRAM on a GTX 10-series card (4 GB or more is more comfortable. If the GPU fails to initialize or the model fails to load, RealSub switches to CPU mode by itself — nothing for you to configure) We strongly recommend an NVIDIA GPU — that is where RealSub performs at its best. Other GPUs go through Vulkan on a best-effort basis: the first run does a short performance test (tens of seconds) and only enables it if it passes. We have verified it on some GPU models, but cannot promise every card. If the test fails or Vulkan errors at runtime, RealSub falls back automatically, shows...
Gameplay
Turn audio you cannot follow into subtitles you can read RealSub is a live subtitle tool for Windows. It captures whatever your PC is playing — or the sound of one specific app you pick — recognizes the speech locally, optionally translates it, and shows the result in a floating subtitle bar on top of everything else. Japanese video with no subtitles, foreign-language streams, lectures, podcasts, interviews, game dialogue: if the sound comes out of this PC, it can be subtitled. Including the places a player plugin can never reach. Hardware first, because the bar is lower than you expect Starts at 2 GB of VRAM on a GTX 10-series card (4 GB or more is more comfortable. If the GPU fails to initialize or the model fails to load, RealSub switches to CPU mode by itself — nothing for you to configure) We strongly recommend an NVIDIA GPU — that is where RealSub performs at its best. Other GPUs go through Vulkan on a best-effort basis: the first run does a short performance test (tens of seconds) and only enables it if it passes. We have verified it on some GPU models, but cannot promise every card. If the test fails or Vulkan errors at runtime, RealSub falls back automatically, shows a tray notification, rewrites the device setting to what is actually running, and you can run "Re-test GPU performance" in Settings any time. No NVIDIA GPU? It still works — RealSub tries Vulkan...
Release details
RealSub is a Free To Play and Utilities game by RealSub Studio. RealSub came out on Tuesday, 27 October 2026 on PC. This date comes from Steam and was last checked on 27 October 2026.
Frequently asked questions
When did RealSub come out?
RealSub came out on 27 October 2026.
Which platforms is RealSub on?
RealSub is on PC.
Who makes RealSub?
RealSub is developed by RealSub Studio.
What kind of game is RealSub?
RealSub is a game of these genres: Free To Play and Utilities.