[AryanSingh-07]

PR Description 📜

Adds Linux Command Challenge: a dependency-free HTML/CSS/JavaScript game with ten Linux command questions, immediate explanations, answer locking, score and answered-question progress, final results with answer review, and restart at any time. Supports mouse, touch, Tab/Enter/Space, number-key shortcuts, and live feedback announcements.

Fixes #5266 if accepted and merged.

Draft / coordination: #5266 is currently assigned to @cobie1818 and already has open PR #5267. This is a separate implementation submitted for maintainer consideration, not a claim of assignment. Please confirm whether an alternative contribution is welcome before marking it ready for review.

Completed ✅

• Self-reviewed code and followed the game folder/file naming conventions.
• Added the game README and GameZone README entry.
• Added the preview screenshot in assets/images and catalog entry 650 in gamesData.json.
• Verified the catalog search result, game link, and loaded thumbnail locally.
• Read the contribution guidelines and code of conduct; issue assignment coordination remains outstanding as noted above.

Validation

• node --check Games/Linux_Command_Challenge/script.js and git diff --check passed.
• Browser playthroughs: 10/10, 0/10, and 6/10 results; all ten review entries; no duplicate scoring; restart during play and after completion.
• Keyboard number selection and Enter navigation; answer disabling and focus movement.
• Responsive checks at desktop, 390px, and 320px; no horizontal overflow at the tested mobile widths.
• No warning/error logs from the game page. No added dependencies.

Screenshot 📸

[kunjgit]

Thank you @AryanSingh-07 ,for creating the PR and contributing to our GameZone 💗
Review team will review the PR and will reach out to you soon! 😇
Make sure that you have marked all the tasks that you are done with ✅.
Thank you for your patience! 😀