Mana Boom
A 2D pixel-art physics party game for up to 8 witches online: lob spells, swing on ropes and blow the ground out from under your rivals.
Links go to the official store or developer page. Last verified Nov 5, 2026.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- View demo on SteamSteamDemo · Free demo since 19 Oct 2026, available until 20 Nov 2026 per the store page; full game listed for 5 Jan 2027Free
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Desktop · Steam
About Mana Boom
A 2D pixel-art physics party game set in a witch academy, for up to eight players online or against computer-controlled witches. Witches lob arcing spells that can split, bounce, drill through terrain, rewind, shatter or grow heavier, combined with fire that spreads across the terrain, water that floods and carries players, ice that freezes opponents and the ground, and lightning that jumps between targets; there are also tricks such as swapping places, spiderwebs, homing magic and a trapped present. The terrain can be destroyed and created: you blast through walls, dig under rivals or conjure platforms and footholds, swing on a magic rope, hook other witches and use explosions to launch yourself, and water and physics interact with all of it. Seven modes include Deathmatch, Rope Race, Capture the Flag, Broom Battle, Broom Race, Coin Rush and Jump Race; in multi-round tournaments the mode can change between rounds and you pick spell upgrades in between. There is a map editor and witch customization. The developer's Steam AI disclosure says generative AI tools were used during development to create most of the game's code and to help with localization, including some store text, with all output reviewed, edited, tested and integrated by the developer; no art, animation, music or sound was generated with AI, and no AI generates anything during play. The computer opponents are game bots. A free demo has been on Steam for Windows since 19 Oct 2026, and the store says it is available until 20 Nov 2026; the full game is listed for 5 Jan 2027, in English, Japanese, Simplified and Traditional Chinese and Korean.
Screenshots and art
Mana Boom key art · Steam store artwork
How it was built
Partially verifiedThe developer's Steam AI disclosure: “Generative AI tools were used during development to create most of the game's code and assist with localization, including some store-page text. All AI-assisted outputs were manually reviewed, edited, tested, and integrated by the developer.” It adds that no artwork, character designs, animations, music, sound effects or other visual or audio assets were generated with AI and that the game does not use live-generated AI during gameplay. No tool or model is named.
Per the Steam AI disclosure, generative AI tools created most of the code and helped with localization and some store text, and the developer reviewed, edited, tested and integrated all of it; the art, animation, music and sound were not made with AI. The game has online play for up to eight players, LAN play, computer-controlled bot opponents with selectable difficulty and a map editor. The engine is not stated.
- Engine / framework
- Not disclosed
- Languages
- Not disclosed
- Team size
- 1 (solo)Developer ReportedSteam (PepaStar)
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“Generative AI tools were used during development to create most of the game's code and assist with localization, including some store-page text.”Verification notes: The AI claim rests on the developer-written AI disclosure on the game's Steam page (read on 5 Nov 2026), which says generative AI created most of the game's code but names no tool, so the tool is recorded as undisclosed and no AI code share is recorded. Modes, spells and features from the store description; the planned release date (5 Jan 2027), Windows platform, languages and multiplayer categories from the Steam store API, and the demo's release date (19 Oct 2026) from the demo app (5229010). The store says the free demo is available until 20 Nov 2026, with limited-time playtests planned afterwards, so the game may not be playable between then and release. Team size comes from the Steam news post of 10 Oct 2026, which asks for wishlists because “It really helps me out as a solo developer!” and is signed PepaStar; the posts appear under the Steam account YUU_0w0. A streamer contest on the news page offers a prize in yen, but no location is stated, so none is recorded. The “AI opponents” the store mentions are computer-controlled bots, not generative AI. The store page showed no user reviews on 5 Nov 2026. We did not play the demo.
Development history
The developer announces a new trailer and a free demo for Steam Next Fest (19 to 26 Oct 2026).
DeveloperSteam (PepaStar)A free demo is released on Steam for Windows.
OfficialSteamLast day of the free demo, per the store page.
DeveloperSteamPlanned release of the full game on Steam.
OfficialSteam
Game performance
Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.
Steam
Applies to the demo (Steam app 5229010). No price is listed for the full game on the Steam store API (checked with cc=us on 5 Nov 2026). Windows; online, LAN and solo play against bots.
Not publicly available: Concurrent players, Positive Steam reviews, Estimated owners, Copies sold, Gross revenue.
Reviews & rankings
Not yet reviewed by our editors.
Not currently ranked.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| Mana Boom on Steam (store page incl. AI Generated Content Disclosure) Steam | Store page | Not confirmed | Nov 3, 2026 |
| Mana Boom Demo on Steam (store API entry) Steam | Store page | Not confirmed | Nov 3, 2026 |
| Mana Boom news on Steam (developer announcements) Steam (PepaStar) | Devlog | Oct 10, 2026 | Nov 3, 2026 |
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