Summary of "Your Username Can Make Crysis Remastered Unplayable on Nintendo Switch"

Crysis Remastered (Nintendo Switch) crash caused by account username

Summary: The game installs and launches, but crashes when starting the campaign for some Nintendo Switch user accounts. The issue appears tied to certain characters in the Switch profile nickname that prevent save data creation.

What happened

Installer and initial launch succeed, but the game consistently crashes when beginning the campaign.
The issue was reproduced repeatedly at the same point by the reporter (Alex, Nintendo Life).

Root cause and technical explanation

The crash was traced to the Switch user account nickname containing an “illegal” character — specifically a colon (:).
That character prevented the game from creating save data, likely due to filename/path restrictions, causing the game to fail and crash.
Replacing the colon in the nickname from nl:alex to nl.alex allowed the game to run normally.
The full set of disallowed characters is not confirmed; the colon is a tested example and other symbols may also cause issues.

Practical advice / troubleshooting steps

If Crysis Remastered crashes on startup, try launching it from a different Switch user account.
If the alternate account works, rename your main Switch nickname to remove symbols (avoid special characters such as colons).
After renaming, relaunch the game and check whether it can create save data and proceed.
If renaming isn’t possible or doesn’t resolve the problem, contact Crytek (developer) or Nintendo support for assistance.

Notes

This appears to be a compatibility/save-path bug rather than a hardware issue. It is likely rare but can render the game unusable for affected accounts.
The reporter contacted Crytek but had not received a response at the time of the video.