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JJBoom
JJBoom is a pixel platformer for 2–4 players (local/online). Use gamepad or keyboard! 16+ free levels with spikes, traps—and your kids—to keep you on your toes!
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.
“I usually like to judge a game on 5 different aspects from 0 to 10, but this is a special occasion. The game is simply not functional to me. I don't know how to make 2 players work. That's the reason I can't recommend this game.”
— a player, Steam review · 0 hrs playedLatest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
network connectivity has been disabled to focus on local couch gameplay.
Version 0.7.2: To ensure the best gaming experience, network connectivity has been disabled to focus on local couch gameplay. Fixed a black screen bug caused by network connections. 32-bit Windows ope
0.6.69更新
优化了一下匹配算法，解决了一个因匹配成功后未得到房主回复而导致匹配卡死的问题 角色同色的问题在一些地方进行了处理 网络经过一定的优化 增加了一个较大的窗口模式（1440*810） 新道具正在全力制作中，谢谢大家喜欢这个游戏
致亲爱玩家的一封信
大家好，我是来自攀枝花的独立游戏制作人蛋蛋，谢谢你们能喜欢我的游戏，AI其实很早就制作完毕了，忘记帖更新说明了，想了解关于《JJBOOM》更多的玩法技巧，可以仔细看商店第二个视频，关于邀请好友的功能，可以在匹配关卡中举起电话进行邀请，或者直接在游戏中按shift+tab调用steam内置的好友列表进行邀请 我是关卡策划出身，前前后后做了差不多10年的游戏，也做过很多大大小小的DEMO，不过早期很多
0.5.50 update for new item - Magnifying Lamp
https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/33518136/77cc94efc6d86fe57de3286136f69518821227ae.jpg AI is speeding up production
0.5.40 update new item dice
https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/33518136/f22a207bd88f346578ca26e55d29863166bec7b9.jpg
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-26.
| Genres | Action, Casual, Indie, Strategy |
| Player tags | Indie · Casual · Funny · Early Access · Multiplayer · Strategy · Action · Fast-Paced · Platformer · Local Multiplayer (SteamSpy community voting) |
| Features | Single-player · Multi-player · Full controller support · Steam Cloud · Family Sharing |
| Languages | English, Japanese, Simplified Chinese, Traditional Chinese, Portuguese - Portugal |
| Controller | Full support |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS *: win7, 8, 10 Processor: 2.0GHZ Memory: 4 GB RAM Graphics: Pixel Shader 2.0 DirectX: Version 9.0 Network: Broadband Internet connection Storage: 400 MB available space Additional Notes: