Key takeaways
- The seizure warning in Assassin’s Creed Odyssey appears as a video file located in the game’s directory before any gameplay loads.
- Seizure warnings have become standard practice across the gaming industry because photosensitive epilepsy represents a genuine medical risk for a significant portion of the gaming population.
- The crash occurring at Assassin’s Creed Odyssey’s seizure warning represents a technical malfunction rather than a flaw in the warning’s design or content.
- The gaming industry’s commitment to seizure warnings stems from a documented medical crisis that occurred decades before Assassin’s Creed Odyssey’s release.
Assassin’s Creed Odyssey, the 2018 action-RPG developed by Ubisoft Quebec, launches with a mandatory seizure warning screen that has sparked technical issues and accessibility concerns among PC players. Released on October 5, 2018, across PC, PlayStation 4, Xbox One, and Nintendo Switch platforms, the game includes a pre-launch informational video designed to protect players with photosensitive epilepsy before gameplay begins.
A Warning Screen That Crashes the Game
The seizure warning in Assassin’s Creed Odyssey appears as a video file located in the game’s directory before any gameplay loads. Players on PC have reported the game crashing immediately upon encountering this warning screen, creating a barrier to entry that prevents them from accessing the main experience.
Community members have documented the technical failure extensively, with some players resorting to manually deleting the warning video file from the game directory to bypass the crash entirely. The warning video is stored in the Steamapps\common\Assassins Creed Odyssey\videos\en folder, and removing it allows the game to launch without the informational screen interrupting startup.
Understanding Photosensitive Epilepsy and Industry Standards
Seizure warnings have become standard practice across the gaming industry because photosensitive epilepsy represents a genuine medical risk for a significant portion of the gaming population. Approximately one in 4,000 people can experience seizures triggered by flashing lights in video games and other media, accounting for roughly 5 percent of individuals diagnosed with epilepsy.
Seizures from flashing lights typically occur when visual stimuli flash between 10 and 25 times per second, emit bright light exceeding 20 candelas per square meter, or display high-contrast patterns covering between 10 and 25 percent of the visual field. Microsoft’s Xbox Accessibility Guideline 118 explicitly acknowledges this medical reality, establishing seizure warnings as a critical safety measure that developers and publishers must implement responsibly.
Technical Bugs Versus Accessibility Standards
The crash occurring at Assassin’s Creed Odyssey’s seizure warning represents a technical malfunction rather than a flaw in the warning’s design or content. While the warning itself serves its intended purpose—informing players about potential risks before gameplay begins—the underlying bug prevents the game from progressing normally on some PC systems.
This distinction matters significantly for accessibility advocates and players with photosensitive epilepsy. The warning screen itself functions as a protective measure, but when it causes the game to crash rather than proceed to the main menu, it creates a frustrating user experience that can discourage players from troubleshooting or attempting to play at all.
A Precedent Set by Real-World Harm
The gaming industry’s commitment to seizure warnings stems from a documented medical crisis that occurred decades before Assassin’s Creed Odyssey’s release. In 1997, a Pokémon cartoon episode broadcast in Japan featured a red flickering sequence that triggered epileptic seizures in over 600 children, hospitalizing them and establishing the concrete, measurable danger of unwarned flashing media.
That incident fundamentally shaped how developers, publishers, and platform holders approach content containing rapid flashes or high-contrast patterns. The Pokémon incident demonstrated that seizure warnings are not merely precautionary measures—they represent lessons learned from actual harm to vulnerable viewers and players.
Naming Conventions and Legal Considerations
Game developers follow specific terminology guidelines when implementing seizure protection features, guided by the Game Accessibility Guidelines that govern industry best practices. Developers are explicitly instructed never to use the term “epilepsy safe mode” due to legal liability concerns, and instead label such settings as “screen flash effects” or “effects intensity” to avoid implying absolute safety guarantees.
This careful language reflects the legal and ethical complexities surrounding accessibility features. While warnings and adjustable settings significantly reduce risk, no feature can eliminate all possibility of seizures, making precise terminology essential for protecting both players and developers from liability disputes.
What Players Should Monitor Going Forward
Players experiencing crashes at Assassin’s Creed Odyssey’s seizure warning screen should remain alert for potential patches from Ubisoft Quebec addressing this technical issue. The developer has not publicly announced a timeline for resolving the crash, leaving affected players reliant on community workarounds or manual file deletion.
The incident underscores the importance of robust testing for accessibility features across all platforms before launch. As the gaming industry continues expanding seizure protection measures, ensuring that warning screens and accessibility settings function reliably becomes as critical as the protective content they contain. Players with photosensitive epilepsy deserve both clear warnings about potential risks and a functional experience when accessing those warnings.
