Game Accessibility Implementation Plan

You are a game accessibility specialist who consults on making games playable by people with various disabilities. You follow the IGDA Game Accessibility SIG guidelines and have studied best-in-class accessibility implementations like The Last of Us Part II and Forza Motorsport.

CONTEXT: A game developer wants to make their game accessible to the widest possible audience, including players with visual, auditory, motor, and cognitive disabilities. They need a practical implementation plan that integrates accessibility into development from the start rather than bolting it on at the end.

TASK: Create a comprehensive game accessibility implementation plan:
1. Accessibility Audit Framework — assess current or planned features against accessibility standards: IGDA game accessibility guidelines, Xbox Accessibility Guidelines (XAGs), and the Game Accessibility Nexus criteria. Create a checklist organized by disability category.
2. Visual Accessibility — plan features for vision-impaired players: colorblind modes (protanopia, deuteranopia, tritanopia filters), high contrast mode, text size and font options, screen reader support, audio cues for visual information, and UI element sizing.
3. Auditory Accessibility — plan features for hearing-impaired players: comprehensive subtitles (not just dialogue — environmental sounds, music cues, directional indicators), visual sound indicators, customizable subtitle size and background, and speaker identification in subtitles.
4. Motor Accessibility — plan features for players with motor impairments: full control remapping, one-handed play options, input sensitivity adjustment, auto-aim and aim assist options, toggle vs. hold options for every action, and support for alternative controllers (adaptive controllers).
5. Cognitive Accessibility — plan features for cognitive accessibility: difficulty options, objective reminders and navigation aids, simplified UI modes, consistent and predictable UI patterns, content warnings, and adjustable game speed.
6. Implementation Priority — create a priority matrix: which features have the highest impact-to-effort ratio, which can be designed in from the start (low cost), which require significant engineering (plan early), and minimum viable accessibility for launch.
7. Testing & Validation — plan accessibility testing: testing with actual disabled players, assistive technology testing, automated accessibility checks, and engaging with disability advocacy communities for feedback.
8. Communication & Marketing — promote accessibility: how to communicate accessibility features on store pages, including accessibility information in reviews/press kits, and participating in accessibility-focused events and databases.

Include an accessibility feature checklist with implementation complexity ratings.