FOUR OF HEARTS INTERACTIVE
Games with heart.Apps with purpose.
Independent games and useful apps, made in South Dakota. Pull up a chair. We saved you the one that doesn't wobble.
GildenSpireDragon Flight Adventure In Development
Thumb CommandArcade Defense In Development
Bobby the BreadasaurusTower Defense Adventure In Development
Choose Your Hero
Evil Doom BoyTower Defense In Development
Press AheadExpedition Match-Three Developer Testing
Sling BlingPhysics Playground In Development
BooYang CityCity Adventure In Development
Funkey TownCreative City Builder In Development
Unicorn BlastPuzzle Adventure In Development
Princess LandCreative Simulation In Development
Unicorn LandCreative Simulation In Development
Gin RummyCard Game In Development
PalaceCard Game Founder Review
HeartsCard Game Internal Alpha
SpadesCard Game Internal Alpha
EuchreCard Game Internal Alpha
SolitaireCard Game In Development
WarCard Game In Development
SOVINTONegotiation App In Development
WhomlyLifestyle App In Development
Sleep AmigoWellness App In Development
More about our lifestyle apps ↗NEW FROM FOUR OF HEARTS INTERACTIVE
GildenSpire
FLIGHT OR FIGHTRaise a dragon. Explore an enormous world. Fight for the sky.
Explore GildenSpire
A NEW LOOK · IN DEVELOPMENT
Sling Bling
Good aim. Questionable restraint.
Gold, jewels, currency creatures, and a world tour with a little structural damage. Sling Nouveau is becoming Sling Bling.
Meet Sling BlingNEW ON THE WORKBENCH · DEVELOPER TESTING
Press Ahead.
A little head start.
An expedition-inspired match-three game with a long trail, a cheerful scout, and a hat doing more than its share of the work.
Still in development. The enthusiasm, however, has already left camp.
Meet Press AheadTHE NAME
4. Ohhh. I get it.
Four of Hearts. Somebody said it out loud. The name stuck.
That is the whole story: Four of Hearts became 4OH. We began at the card table and kept building—original games, imaginative worlds, and useful apps made independently in South Dakota.
No secret acronym. No corporate mythology. Just Four of Hearts said out loud.
The unnecessarily complete explanation ↗THE CRAFT
Built with care.
Occasionally rebuilt with a sigh.
Careful engineering. Thoughtful design. Accessible defaults. And the ability to say, 'Ah. That was us,' when the clever fix needs another look.
We want games that make you grin and tools that make the day easier. If we can do both before the coffee goes cold, we'll be insufferably pleased with ourselves.
AI helps us explore ideas, build, and test. We also use it within products where it serves a clear purpose. Human judgment and careful engineering guide the work.
PRIVACY IS PART OF THE PRODUCT
Personal information should remain personal.
We love data. We just do not think all of yours belongs to us. Four of Hearts makes paid software, not dossiers: no behavioral advertising, no cross-app profiling, and as little collection as the product actually needs.
We do not need to know what kind of toilet paper you buy. We are sure it is fine.
Read our privacy approach →- No behavioral ads
- No sale of personal data
- Local-first where practical
THE CURRENT 4OH LINEUP
Meet the family.
Card tables, dragons, a bread dinosaur with a defense plan, and apps for the rest of the day. A perfectly normal family, once you stop asking questions.
ORIGINAL GAMES
Fun is serious work around here.
Flight · Combat · AdventureGildenSpireRaise your dragon. Take to the skies. Fight for an enormous fantasy world.Discover GildenSpire ↗
Arcade · DefenseThumb CommandAlien fleets. Real cities. One very busy spaceship.Enter Thumb Command ↗
Tower Defense · AdventureBobby the BreadasaurusA bread dinosaur, a herd to protect, and a suspicious number of defensive towers.See Bobby’s defenses ↗
Choose Your Hero
Tower Defense · ActionEvil Doom BoyThey lost their names. Not their courage.Meet both heroes ↗
PUZZLE & CREATIVE PLAY
Strategy, silliness, and a lot of heart.
Match-Three · Expedition · AdventurePress AheadA little head start. A rather long adventure.Meet Press Ahead ↗
Physics · Gold · PlaySling BlingGood aim. Questionable restraint.Meet Sling Bling ↗
City Building · Mini AdventuresBooYang CityA whole city of things to do.Explore BooYang City ↗
Building · Art · CommunityFunkey TownBuild a town. Turn it into art. Make it yours.Enter Funkey Town ↗
Puzzle · AdventureUnicorn BlastMatch suits. Set off ridiculous chain reactions. Free the unicorns.See Unicorn Blast ↗
Creative SimulationPrincess Land AdventuresDesign the castle, style the princesses, cook, decorate, then rearrange all of it.Visit Princess Land ↗
Creative SimulationUnicorn Land AdventuresMeet the unicorn. Fix the mane. Shape the habitat. Add way too many flowers.Meet the unicorns ↗
THE CARD TABLE
Good games.
Better company.
Partnerships, bold bids, friendly rivalry, and a quiet solo deal. Find your kind of table.
Palace
One table. Three layers. A hidden finish.
Discover & play Palace ↗
Hearts
Read the room. Dodge the points.
Explore Hearts ↗
Spades
Make the bid. Back your partner.
Explore Spades ↗
Euchre
Five cards. Two bowers. One good call.
Explore Euchre ↗
Solitaire
A little quiet. One satisfying deal.
Explore Solitaire ↗
War
Flip together. Let the cards decide.
Explore War ↗Gin Rummy
Two players. Ten cards. One good read.
Explore Gin Rummy ↗A welcoming table is the idea.
We want joining to be simple and the competition worth coming back to. Today, Palace has tested online joining in its private app, War brings people together on one device, and the other multiplayer titles are still being developed. Public community features and lasting online rankings are not available across the collection.
APPS WITH PURPOSE
Useful software.
Less nonsense.
We like software that actually does something: thoughtful tools, clear decisions, and privacy built into the plan.
Preparation · Practice · NegotiationSOVINTOPrepare with purpose. Negotiate with confidence.Meet SOVINTO ↗
Public Research · PeopleWhomlyFind people. Open opportunities.Discover Whomly ↗
Sleep · WellnessSleep AmigoBetter nights. Better you.Meet Sleep Amigo ↗
LATEST FROM 4OH
Notes from the workbench.
Good ideas, small mishaps, and the reassuring discovery that the missing piece was in our pocket.
Also on the workbench: Press Ahead, our new expedition-inspired match-three project. A little head start couldn't hurt.
Development phone screenshotThe last card has declined to comment.Three layers of cards. One very good plan. We should probably have told the deck about the plan.Read dispatch ↗
Development browser capturePress Ahead: a little head start.A new expedition-inspired match-three game, with a name we could not possibly leave alone.Read dispatch ↗Current app artworkA bedtime notification should know the way home.A notification-to-Home navigation fix is in development testing. Fewer detours at the end of the day.Read dispatch ↗