Arknights: Endfield installs on PC through GRYPHLINK, the official launcher from Gryphline (Hypergryph's global service brand for the game). You download the GRYPHLINK installer, extract it, install the launcher itself, and only then does GRYPHLINK download the actual game client.
Storage you actually need
Gryphline's own guidance lists 50GB or more of free space for the installed game, plus roughly another 40GB used temporarily during extraction — around 90GB of free space in practice while installing, even though the final installed size is smaller. Installing on an SSD is the official recommendation for load times and streaming performance.
| Stage | Space needed |
|---|---|
| Installed game | 50 GB or more |
| During extraction (temporary) | +40 GB, roughly 90 GB total |
Before you install
If you took part in an earlier closed or open beta test, Gryphline's own notes say to uninstall that older GRYPHLINK build first rather than installing the worldwide release on top of it. Arknights: Endfield launched worldwide on January 22, 2026, and account progress syncs across PC, PlayStation 5, Android, and iOS through your linked Gryphline Account, so a clean install does not cost you saved progress once you sign back in.
Common login and launch problems
Gryphline's support center lists client freezing during launch as a known issue, specifically a freeze at the "Releasing Resources 0%" stage. If the client hangs there, the general troubleshooting order is: let it sit for a minute in case it is a slow one-time resource check, then close it fully and relaunch, then check for a pending GRYPHLINK update, and finally reinstall the launcher if the freeze repeats.
Support documentation also separately calls out NVIDIA driver optimization as a source of performance and stability issues on PC, so keeping GPU drivers current is worth checking before assuming a deeper problem.
Login problems on PC are usually tied to the Gryphline Account system rather than the game client itself: account creation, changing the email on file, and linking a third-party account (for cross-platform play) are all handled through Gryphline Account settings, not through the game client's own menus.
FAQ
What launcher does Arknights: Endfield use on PC?
GRYPHLINK, Gryphline's official launcher. It is a separate download from the game client itself.
How much free space should I actually keep available?
Plan for around 90GB free during installation (50GB for the installed game plus roughly 40GB used temporarily while files extract), even though the game's installed footprint afterward is smaller.
My client freezes at "Releasing Resources 0%" — what should I try first?
Close and relaunch, check for a pending GRYPHLINK update, and confirm your GPU drivers are current before reinstalling the launcher.
