Fifth Door

YC F25 · Active · Create and play games with AI

Competitors

Companies closest to Fifth Door
Company	Category	Status	Program
VectordashShared: gaming, play, gameInactiveOther	Other	Inactive	YCW19
nunu.aiShared: play game, gamingActiveAI	AI	Active	YC +1W23
HyperpadShared: gaming, play, gameActiveDevtools	Devtools	Active	YCS14
Gym ClassShared: play game, gaming, createActiveAI	AI	Active	YCW22
WavedashShared: gaming, play, gameActiveAI	AI	Active	YCX25

Adjacent

Companies next to Fifth Door
Company	Category	Status	Program
GamebytesShared: gaming, gameActiveOther	Other	Active	YCS19
DreamCraft Entertainment, Inc.Shared: gaming, game, createActiveDevtools	Devtools	Active	YCS18
StarShared: gaming, game, createActiveAI, Devtools	AI, Devtools	Active	YCS22
PopsShared: gaming, play, gameActiveAI	AI	Active	YCX26
Game ClosureShared: play game, gamingNot statedOther	Other	Not stated	500 Global2015

Also from F25 in AI

All of F25

Company	Category	Status
DigipalsThe future of Social in the age of AIActiveAI	AI	Active
LogicalA proactive desktop copilot. Clippy, but actually good.ActiveAI	AI	Active
MixyMake mashups without knowing how to DJActiveAI	AI	Active
NarrativeAI Video EditorActiveAI	AI	Active
SellRazeThe fastest way to sell online.ActiveAI	AI	Active
SorceTinder for jobsActiveAI	AI	Active

Founders

Daniel KanFounder/CEO
Amir GhazvinianFounder/CTO

About Fifth Door

Fifth Door unlocks the power of imagination by making it easy for everyone to create, share, and play games anywhere, with anyone. We exist to stimulate the creativity, connection, and joy that people get when they play games.

YC batch: F25 · Fall 2025
Status, per YC: Active
Category: AI
Team size: 3
Location: San Francisco, CA, USA
Founded: 2025
Checked: 34m ago

YC tags: Consumer, Gaming, AI

Fifth Door in F25: 146 companies, 89% AI

Fifth Door: questions

Which YC batch was Fifth Door in?

Fifth Door was in Y Combinator's Fall 2025 batch (F25).

Is Fifth Door still active?

Y Combinator lists Fifth Door as active.

Who founded Fifth Door?

Fifth Door's founders, as listed on its YC page: Daniel Kan (Founder/CEO), Amir Ghazvinian (Founder/CTO).

Where is Fifth Door based?

Fifth Door lists San Francisco, CA, USA as its location on YC's directory.

Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.