Cobalt Star Idle

Cobalt Star Idle is an idle game about a galaxy of 3,840 stars that lives in your Chrome side panel. Light the stars, let the Calculator level them, collapse the galaxy into a Supernova, and start again stronger. Something in the dark contests your stars, and four Keepers fight it beside you. HOW IT WORKS You light and level stars on a procedural map you can pan and zoom. The Calculator spends your Computation on the best-value level-ups, and the Attendant, who wakes at your first Supernova, plays the same actions you do at a pace you choose. A Supernova resets the galaxy for Dark Matter and permanent income. A Hypernova is a deeper reset that pays Cores. The game keeps earning while the panel is closed: 12 hours, up to 24 with Supernovas. FEATURES - Light and level a procedural galaxy of 3,840 stars and finish constellations for bonuses. - Choose how the Calculator picks its targets: best value, newest, lowest or a pinned star. - Go Supernova, then Hypernova, and take on three optional Trials with harder rules. - Face the Underverse in optional battles against four kinds of swarm, with four postures and a forecast that is a full simulated fight. - Recruit four Keepers (Neutron Warden, Prism Weaver, Comet Skirmisher, Lantern Mender), rank them up and pick their traits. - Spend Dark Matter and Cores in the Store on skins, Keeper frames and three small capped Formulas. There is no premium currency. - Switch between a Guided and a Full interface. Sound is on by default and has one switch to turn it off. - Keep a Receipts ledger you can copy or save as a PNG or text file. PRIVACY Your save stays in your browser. Cobalt Star Idle has no accounts, no analytics and no ads, and it runs no server of its own. If Chrome Sync is on, the optional sync setting also keeps a compressed copy of your save in Chrome's own sync storage so progress can follow you between browsers. It is on by default and you can turn it off in Settings. The game links to Ko-fi; following that link is optional. PERMISSIONS - sidePanel: shows the game in Chrome's side panel. - storage: saves your progress and the optional sync copy. - alarms: wakes the game once a minute so away time is counted. - notifications: tells you when your away-time cap has been reached. WHAT CHANGED SINCE THE FIRST LISTING (0.1.0, then called Sidebar RPG Idle) The core loop was replaced, not extended. Tapping enemy waves with four orbiting child stars became a 3,840-star galaxy with the Calculator and the Attendant. Ascend and Singularity became Supernova and Hypernova. Elemental combat and a spellbook became optional Underverse battles with postures, swarm kinds and four Keepers. Gacha-style cosmetics became a Store for Dark Matter and Cores with no premium currency. New: Guided interface, goal line, 44 achievements, Receipts, and a story told through the Attendant and the Codex. SUPPORT Bug reports: Dhseadev@gmail.com. More from the developer: dhseadev.online/projects/cobalt-star-idle