Deep Vein Idle - an OSRS-like idle MMO you play in a browser tab: one shared world, permanent characters, offline progress

Game Announcement

Some of you might have seen Deep Vein Idle around already. I'm a solo dev, and it's a free, browser-based idle MMO with old-school skilling at its heart. Nothing to download, it runs straight from the browser on desktop or phone.

I'm posting because it has been live for about two weeks now, and it grew faster than I expected: more than 2000 players have been by, and there are usually 300+ on the map at any time of day. Equal parts exciting and terrifying as a team of one.

One shared world
Everyone plays on the same map. You can see other players out mining, fishing and fighting, trade with them, join a guild, and take on world bosses together. It's an MMO, not a single-player idle game with a leaderboard bolted on.

Your character is permanent
No resets, no wipes, not now and not at some future "full release". Whatever you train stays. Your character also keeps working while the tab is closed, and offline progress is exact rather than an estimate, so an evening away counts for exactly what an evening online would. Leave for a day, come back to a full bank.

What's actually in the game

  • 16 skills: five gathering, six producing, five combat, and they interact the way you'd expect from a scapelike.
  • Tick-based movement and combat.
  • A player-driven market with buy and sell orders.
  • Guilds, friends lists, DMs, daily and weekly quests, and player housing.
  • World bosses the whole server fights together.
  • Free to play, the core game is behind no paywall.

Recently added
Development is active, and the last couple of weeks have added some big pieces:

  • Player housing: a private home you build out and upgrade, with rooms that give real gameplay bonuses.
  • A Collections log that tracks everything you've gathered and crafted and feeds into the rankings.
  • A graphics and UI overhaul, plus an edit mode that lets you drag your HUD into whatever layout you like and saves it to your account.
  • Full Simplified Chinese support, with a language switch right on the login screen.
  • Plus the smaller quality-of-life work: a friends list with DMs and online status, a stats panel that shows every bonus you have and exactly where it comes from, and a batch of mobile and small-screen fixes, most of them straight from player reports.

There will still be rough edges, and I'm around and reading everything. Play here: https://deepveinidle.com

I'd genuinely love feedback, especially on the first ten minutes: is it clear enough, or does it throw too much at you at once?

Posted Sep 23, 2026, 8:37 AM UTC

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