GREY DAY: JOURNEY

GREY DAY: JOURNEY

Idle Zombie Journey in Seoul

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Free
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Released
October 21, 2026
Updated
October 22, 2026

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About

A honeymoon in Seoul. A zombie outbreak. A journey that never ends. GREY DAY: JOURNEY is an idle voxel survival adventure. Kate and Ryan walk across a fallen Seoul one landmark at a time — walking and fighting happen on their own. You choose their gear, their upgrades and when to make camp. [17 SEOUL LANDMARKS] Gwanghwamun, Gyeongbokgung, Myeongdong, Namsan Tower, the Han River, Gangnam, Lotte World Tower, Bukhansan and more — each built by hand in 5cm voxels. Past Bukhansan the road loops back, tougher every lap. [FULLY AUTOMATIC] No controls to learn. The couple walk, fight and talk on their own at a relaxed pace. Leave it running and watch the city go by. [LOOT, SETS AND UPGRADES] Zombies drop weapons, shields and armor in five grades with randomly rolled stats and affixes. Collect matching set pieces for set bonuses, and repair and upgrade your gear at camp. [CAMPING AND FATIGUE] Walking and fighting wear the couple out. Make camp, light a fire, heal and recover with camping gear — and chat by the fire. Roast marshmallows over the flames: pull them out at just the right moment for a golden treat. [BOSSES] A boss waits at the end of every landmark. Retreat, prepare and come back stronger. Hunt cleared bosses again for rare gear. [SURVIVORS AND MERCHANTS] Rescue survivors trapped in cars and behind barricades, and trade with wandering merchants. [14 COSTUMES] Tracksuits, long puffers, party wear, a tuxedo and hanbok. Fancier outfits come with bonus stats. [WALK WITH OTHER TRAVELERS] Faint echoes of players ahead of you appear on the road — pass them and climb the distance ranking. The top 3 walkers of each month receive gold in their mailbox. [YOUR JOURNEY, SAVED] Link your Apple or Google account to keep your progress and gold on our server, even when you change devices. [A STORY ON THE ROAD] Hundreds of conversations about the landmarks, the honeymoon they planned and the disaster around them — in 13 languages. Free to play. Optional in-app purchases and rewarded ads. All crate odds are shown in the game. The journey plays offline; rankings, mail and server saves need an internet connection.
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What's New in GREY DAY

1.0.2

October 22, 2026

Invite Friends - Share or enter a referral code and you both get gold and loot crates What's new - Episode replays & rewards, Ryan's sketch journal - 2x speed, upgrade transfer, awakened & legendary-only gear - Survivor nationalities with rescue talks by country, flags in rankings - Graphics quality and text size settings Halloween event until Oct 31 - Bug fixes and balance tuning

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Events

Read more about Launch Gift

Launch Gift

Free weapon crates, gold and camping gear

Oct 23, 2026 — Nov 22, 2026

Read more about Halloween in Fallen Seoul

Halloween in Fallen Seoul

Scavenged costumes and candy drops

Oct 23, 2026 — Oct 31, 2026

Developer apps