The fastest ways to get gems in Roblox Slimera are usually redeeming codes , doing daily/weekly quests , and completing achievements. Public guides also note that early campaign clears can give small gem bonuses, but achievements tend to be the biggest source overall.

How to get gems

  • Redeem active codes. One guide lists codes like launch and beta, and another says codes are the easiest way to get gems quickly.
  • Finish daily and weekly quests. A guide says these give a steady trickle of gems, though not a huge amount.
  • Push achievements. The same guide says achievements are the “holy grail” for gems because many of them pay out larger amounts.
  • Clear campaign/floors for first-time bonuses. Early progression gives one-time gem rewards, including a gem per floor in some modes.
  • Claim group/reward requirements. Some codes and rewards require joining the game’s group, liking the game, or reaching level 5 first.

Best order

  1. Redeem every active code first.
  2. Do all easy daily and weekly quests.
  3. Hunt achievements tied to story, floors, and milestones.
  4. Use first-clear bonuses while progressing normally.
  5. Recheck for new codes after updates.

Quick note

A lot of search results use the game name Slimera , which appears to be the same Roblox slime game people are referring to when they ask about gem farming.

TL;DR: codes first, then quests, then achievements. That combination is the most reliable way to build gems without spending Robux.