Sunkeeper

Sunkeeper is an idle game about a star and the worlds around it.

You start with one dim star. Click it to make light, spend the light on more stars, and planets begin to form in orbit. Each one gets a name and its own people. They start as a small tribe and work their way up through seven eras, researching technology and building things like a Great Library and a Dyson Swarm.

When progress slows, let your star swell and swallow its inner planets, or go supernova and start again stronger. Along the way you unlock constellations, a spirit tree, divine powers, a nursery where you breed baby stars, and derelict alien ships that hold the pieces of a lost alphabet. Finish the alphabet and things get stranger.

THE SKY IS BUSY

Comets, meteor showers, solar storms and a leviathan drifting past. When worlds line up or cross the face of your star, a rite opens for a short time and gives you a boost if you catch it. Shooting stars give surges, and boosts that run at the same time multiply each other.

• A small, resizable window, with always-on-top and borderless modes, or play it fullscreen.
• Desktop mode: just your solar system floating over your wallpaper.
• Offline progress for your light, your research and your nursery.
• Companion tools in their own windows: focus timer, to-do list, notes, music player, clocks, alarms and a calendar.
• Controller support, rebindable keys, Steam Cloud and three save slots.
• Speedrun mode with Steam leaderboards.
• English, German, French, Spanish, Italian, Dutch and Japanese.