▦ Boardroom

Gem collection and engine-building strategy game

Play Luma Gemworks online with friends

Build a brilliant workshop in a floating city of jewel artisans. Collect gems from a shared exchange, turn them into permanent workshop discounts and earn the support of visiting guilds. Luma Gemworks is an independent game similar to Splendor, with its own card catalog, artwork, setting and rules text. Play with 2–4 friends in a browser room or add practice bots.

2–4 players · 20–40 minutes · Free · Practice bots available

Play Luma Gemworks

How to play Luma Gemworks

  1. Create a room, invite your friends and let guests mark themselves ready. The host starts when 2–4 players have joined; bots can fill empty seats. Each regular gem supply has 4, 5 or 7 tokens for 2, 3 or 4 players, with 5 wild Sunstones.
  2. Take one action on your turn: collect up to three different gem colours, collect a pair from a colour with at least four tokens remaining, buy a workshop, or reserve a face-up card or a hidden card from a tier deck.
  3. Buying a workshop earns its printed prestige and a lasting discount in its colour. Subtract your permanent discounts from future costs, then spend gems from your pouch. Sunstones can cover missing colours. Spent gems return to the shared supply.
  4. Keep up to three reserved cards private. Reserving gives a Sunstone if one remains; you can reserve even when none remain. If you hold more than ten gems after an action, return the excess before continuing.
  5. Match a visiting guild’s requirements with your permanent discounts to gain three prestige. Choose one eligible guild at the end of a turn. Reaching 15 prestige starts the final round; play through the last seat for equal turns. Highest score wins, with fewer purchased workshops breaking ties; equal results share the win.

Tips for your first game

Start with workshops you can afford soon and plan around a visiting guild. A permanent discount can be more valuable than a single gem. Reserve a key card when you need time to pay for it, but keep your three reservation slots useful. Check the cost preview to see exactly what your discounts and Sunstones cover.

What to know before you start

All 80 workshops use an original, rotationally balanced cost catalog and five illustrated gem districts. This is an independent game, not an official Splendor edition and not affiliated with its publisher. Voice chat is optional. Reconnect with your saved seat if your connection drops; explicitly leaving hands the workshop to a bot. After the game, replay or choose another game with the same group, room and voice.

Create a room, share the invitation and wait for your guests. They only need a display name to join. Public waiting rooms may appear in the game's room directory; Draw & Guess and Word Impostor are invite-only by default unless the host enables listing.

Can I play Luma Gemworks alone or with friends on a phone?

Yes. Invite 2–4 friends or add practice bots. Cards, gem supplies and your private pouch work with touch controls. Everyone joins with a display name; no account or download is required.

Do I need an app or an account?

No. Open the room link in a modern browser on your phone or computer. The games are free to play without sign-up. Optional voice chat asks for microphone permission; you can keep playing without joining voice.

Create a Luma Gemworks room

More games for your group