Horror

Grave Mistakes

Grave Mistakes is a 2-4 player co-op horror comedy from Happy Volcano. Run a funeral home, prepare bodies for viewings, and feed spare parts to the monster downstairs.

ActionSimulationHorror Comedy
Grave Mistakes key art showing the Good Mourning funeral home interior
Developer
Happy Volcano
Platforms
windows
Price
TBA
Release date
November 26, 2026
Players
2-4 player online co-op
Game type
Action, Simulation, Horror Comedy
Publisher
Oro Interactive
Updated
November 5, 2026

Editorial check

Reviewed game information

Editor
Game How To Editorial Team
Last checked
November 5, 2026

Update history

  1. Created guide ahead of the November 26 launch, based on Steam metadata, publisher materials, and press previews.

Official game

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What Is Grave Mistakes?

Grave Mistakes is a 2-4 player online co-op horror comedy from Happy Volcano (We Are The Dwarves, Yolanda) and publisher Oro Interactive, launching on Steam November 26, 2026. The setup: your family has run the local funeral home for generations. Flowers, eulogies, dignified services. The respectable business hides one problem, and the problem lives in the basement.

Grandma struck a deal years ago that saved the funeral home from bankruptcy, and the deal turned her into a monster. She is still the CEO. Every day she puts in a request for an assortment of body parts, and it falls to you and your crew to perform the autopsies that fill the order. Keep her fed and the family thrives. Miss the menu and she eats one of you instead.

Press has been quick with the comparison and it holds: ScreenRant calls it Overcooked meets Graveyard Keeper. You get the chaotic kitchen-style task management of the former wrapped around the morbid corpse economy of the latter. Bloody Disgusting liked the pitch too, summing it up as putting the fun back into funeral.

Grave Mistakes Details

DetailInfo
GenreCo-op horror comedy, time management, physics sim
DeveloperHappy Volcano
PublisherOro Interactive
PlatformWindows (Steam)
PriceTBA
Players2-4 player online co-op, proximity chat
ReleaseNovember 26, 2026
PlaytestSign-up playtest available before launch
Store IDSteam app 4635290

How to Play Grave Mistakes

The Daily Shift Structure

Each in-game day runs on two clocks. The front of house clock belongs to grieving families: bodies must be prepared for their final viewing, eulogies delivered, ceremonies kept dignified. The back of house clock belongs to Grandma: her body part order arrives at the start of the shift, and you get the entire day to gather it. Steam's store page puts it plainly, running out of fresh meat is not an option.

The comedy engine is that both clocks demand the same corpses. Every body in your care is simultaneously a product for a viewing and a parts inventory for the basement. Chop too carelessly and the viewing looks wrong. Chop too carefully and Grandma gets hungry. Managing that tension is the whole game.

Body Prep and the Physics Layer

Bodies are physics objects. You chop them, clean them, and assemble them for viewing, and limbs can be swapped out. The feature list confirms the gag: replace missing limbs with various items, so a display body can ship with a broom handle where an arm used to be, or whatever else is lying around. Families notice things, and suspicion is a resource you manage. Deceiving families and avoiding raised eyebrows is listed as a core mechanic, so the quality of your substitute limbs matters.

Practical tip for the playtest and launch week: do the dirty work in the back room, not the prep room visible to guests. Bodies need cleaning before a viewing, and cleaning stations take time. Assign one player as the cleaner while others handle logistics.

Feeding Grandma

Grandma requests an assortment of parts daily, and the menu varies. Treat it like an order queue in a cooking game: read it first, check which bodies on hand cover the order, and harvest with minimal waste. A part harvested from a body that is also scheduled for viewing creates a conflict, so sequence your day around which corpse gets opened and which gets displayed. If the order fails, she feasts on a crew member, which presumably removes a pair of hands from your shift right when you need them.

Ceremonies and the Organ

Viewings and ceremonies are performance moments. You deliver eulogies and play the organ at services, and these segments reward composure under pressure while the rest of the team keeps the back room running. Split roles so the same player is not doing the eulogy and the autopsy in the same five minutes.

Upgrades and Progression

Between shifts the funeral home upgrades. Store materials list upgrading and improving the home as a feature, which in practice means better tools for chopping and cleaning, faster transport, and presumably nicer camouflage for your part-stealing operation. There is also a mystery threaded through the campaign: figure out the mystery behind it all, meaning the story of Grandma's deal and what the funeral home has actually been feeding the town.

Tips

  1. Read Grandma's order before touching any body. The menu dictates which corpse gets opened today. Painting a display body first and then needing it for parts is the classic new-player disaster.
  2. One player owns the basement. In a 3-4 player crew, dedicate someone to Grandma logistics while the rest handle the front of house. Nobody should be surprised by the dinner deadline.
  3. Keep suspicious items out of guest areas. Limb substitutes and leftover parts draw suspicion. Move waste promptly.
  4. Use proximity chat as a tool, not just comedy. Sound leaks. What you say near a family matters in-world, and the game ships with custom volume controls so you can balance game audio against voices.
  5. Upgrades that save time beat upgrades that look good. Faster cleaning and transport pay off every single shift.
  6. Join the playtest. Oro Interactive runs a sign-up playtest before launch, and this genre lives or dies on task feel. Test your crew's role assignments there.

Comparison With Similar Games

If your group burned out on Overcooked but loved the premise, this sits in the same seat with a darker script: shift-based co-op, escalating task load, role swapping, and a central pressure mechanic. Next to Graveyard Keeper it trades the solo grind for party chaos and adds a live customer-facing lie, plus a boss who is literally the monster.

FAQ

When does Grave Mistakes release? November 26, 2026 on Steam for Windows.

How many players does it support? 2-4 players in online co-op, with proximity voice chat built in. It is listed as Multi-player and Co-op on Steam.

Is there single-player? Steam lists no single-player tag. The design, from shared autopsies to eulogy duty, assumes a crew. Wait for reviews if you plan to run it alone.

What is the game actually about? You run a funeral home by day and harvest body parts for Grandma, a monster in the basement, by nightfall. Fail her menu and she eats a crew member.

Is it scary or funny? Both. The horror is setting and stakes, the comedy is physics-based corpse mishandling and family business logic. Press coverage calls it a horror comedy without qualification.

Can I try it before release? Yes, publisher Oro Interactive offers a playtest sign-up ahead of the November 26 launch.

Who are the developers? Happy Volcano, a Belgian indie studio, with Oro Interactive publishing.

Screenshots

Grave Mistakes gameplay of players preparing a body on the autopsy tableGrave Mistakes screenshot of the funeral home reception with grieving familiesGrave Mistakes screenshot of the monster Grandma waiting in the basementGrave Mistakes screenshot of players delivering a eulogy at a ceremonyGrave Mistakes screenshot of limb replacement with odd household items