# A Mass of Dead Summer DB entity ID: 8f583b4e\-a746\-4354\-999d\-3915ae903fd5 Steam App ID: 269630 Massacre of zombies\! In the near future, a zombie virus runs rampant\. Sara, the special agent, receives a rescue sign from one of the laboratories then heads to the city of dead to find a vaccine\. Survive the zombies\. Buy and upgrade weapons and equipment to massacre zombies\. Kill special zombies like zombie dogs, get unique weapons and equipment that you can’t buy from the shop\. Be unbeatable using power booster and massacre zombies\. Key Features Massacre masses of zombies\. 2\~4 Player online CO\-OP Be unbeatable with power booster, and massacre zombies\. Various special and boss zombies \(zombie dog, Explosion zombie etc\.\) Unique weapons and equipment from special zombies that can’t buy from the shop\. ## Game information - Type: game - Developer: Dev Arc - Publisher: Dev Arc - Release date: Jul 15, 2015 - Coming soon: false - Free to play: false - Parent Steam app: Not collected - Genres: Action, Indie - Categories: Single\-player, Multi\-player, Co\-op, Cross\-Platform Multiplayer, Steam Achievements, Steam Trading Cards, Partial Controller Support, Steam Cloud, Family Sharing - Platforms: windows, mac, linux - Website: Not collected - Screenshots: https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_59a4cebef412e7b6f6fbb48f9ed577c99d7b0774\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_37c51e2660bbce27fe2384d84b9e2eaa0d437aa1\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_6e1bc7cbaeecb1e53d63772d54d97c1d32e78fdb\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_6ea424b9e0690d446c05c4ae29383f8f98d6778a\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_6c5f16f7bc85d8484738e4925126ca429d66b51c\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_763f6755c8a875ea56c6340b56383639dcb5d025\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_f2c7a149fafa775217d6e2118d1a3223b14aff7a\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_3f383122117db82071bbeca871d674dadb37c836\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_54b3bc9f5369de1057f141bac5eeb01202224058\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_11f8c969db687709469ca69e8efe2630a085dde6\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_a44d770d57bf412d5f4a3b3608d2473339b74f34\.1920x1080\.jpg?t=1551230301, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/269630/ss\_fe4a7aa19de2720ebfd532926b9f54a6e558e3b6\.1920x1080\.jpg?t=1551230301 - Price: 499 minor units USD; discount 0% - Price country: US ## Observed metrics - Current players: 0 - Steam review count: 56 - Steam positive reviews: 28 - Steam negative reviews: 28 - Steam positive percentage: 50% - Summer DB rating: No native votes Review filters: \{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\} ## Player history [Seven-day chart data as Markdown](/api/v1/entities/8f583b4e-a746-4354-999d-3915ae903fd5/player-metrics?days=7&format=markdown) · [JSON](/api/v1/entities/8f583b4e-a746-4354-999d-3915ae903fd5/player-metrics?days=7) Chart values are hourly observed maxima. The sampled 24-hour peak and missing intervals carry explicit coverage; history before collection is unknown. ## Sources and freshness - Catalog membership: store\_catalog - Catalog observed: 2026\-09\-28T16:58:32\.455488\+00:00 - Details observed: 2026\-09\-21T22:51:56\.130694\+00:00 - Player count observed: 2026\-09\-21T22:51:57\.591781\+00:00 - Reviews observed: 2026\-09\-21T22:51:57\.151489\+00:00 Full provenance: \{"urls":\{"price":"https://store\.steampowered\.com/app/269630/","catalog":"https://api\.steampowered\.com/IStoreService/GetAppList/v1/","details":"https://store\.steampowered\.com/app/269630/","players":"https://api\.steampowered\.com/ISteamUserStats/GetNumberOfCurrentPlayers/v1/?appid=269630","reviews":"https://store\.steampowered\.com/appreviews/269630"\},"price":"2026\-09\-21T22:51:56\.130694\+00:00","source":"steam","catalog":"2026\-09\-28T16:58:32\.455488\+00:00","country":"US","details":"2026\-09\-21T22:51:56\.130694\+00:00","players":"2026\-09\-21T22:51:57\.591781\+00:00","reviews":"2026\-09\-21T22:51:57\.151489\+00:00","language":"en","editorial":null,"membership":"store\_catalog","observations":\{"price":"8887f290\-b33a\-47cf\-bae6\-32bae57dbb84","catalog":"97273f3d\-4d65\-4ef4\-a2f3\-1191bacadad1","details":"0a22c449\-87c4\-4588\-8fff\-0883cffe2a18","players":"071f34c2\-bf25\-479d\-be3f\-39cedf9f7a78","reviews":"3715a856\-211e\-45aa\-85df\-daed5b1fbe77"\},"reviewFilters":\{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}\} Native rating methodology: \{"count":0,"average":null,"entityId":"8f583b4e\-a746\-4354\-999d\-3915ae903fd5","revision":0,"observedAt":null,"methodology":"arithmetic\-v1","distribution":\[0,0,0,0,0,0,0,0,0,0\]\} Steam reviews are not Summer DB votes. Missing data is not zero. Player counts are observations, not historical peaks. A supplemental record does not establish that a game was delisted. [Steam store](https://store.steampowered.com/app/269630/) · [JSON](/api/v1/games/8f583b4e-a746-4354-999d-3915ae903fd5)