Indie games succeed when they nail one mechanic, one mood or one social loop — not when they try to compete with AAA budgets. StartSeed generates ideas scoped to one core mechanic, one player type and one monetisation model.
A word-puzzle game for language learners where each level teaches 10 new words through context clues, with streaks and leaderboards. Free with ads, $2.99 to remove them. It could be called Lingoquest.
A roguelike deck-builder where the rules change daily based on a seeded prompt, so every player faces the same challenge on the same day. One-time purchase at $9.99. It could be called Dailyrun.
A local-multiplayer party game where 4-8 players use their phones as controllers to draw, guess and sabotage each other in real time. Freemium with cosmetic packs at $1.99. It could be called Phoneparty.
Build a playable prototype in two weeks. If testers ask 'when's the next level?', you have a game worth finishing.
One clear mechanic, a visual style you can produce alone or with a small team, and a monetisation model that matches how your players buy games.
Godot for 2D and small 3D, Unity for cross-platform 3D, or pure web (Phaser, PixiJS) for browser games. Pick the one with the best docs for your skill level.