For Speed Training on Roblox , gems usually come from a few core methods: rebirth rewards, codes, chests, and sometimes event or quest rewards. In similar Roblox speed simulators, rebirthing is a common way to earn gems, and some games also give gem bonuses from hidden chests or limited-time codes.

Common ways to get gems

  • Rebirths: Many speed simulator games reward gems every time you rebirth, often in a fixed amount.
  • Codes: Some games release promo codes that grant gems directly, so checking the game’s code list is worth it.
  • Chests or collectibles: In similar speed games, special chests can give large gem payouts, sometimes on a timer.
  • Floating pickups or rewards: Some games place gems around the map or hand them out through progression systems.

What to try first

  1. Rebirth as soon as you can if the game pays gems for it.
  1. Look for an in-game codes menu and redeem any active codes.
  1. Explore the map for chests, roof spots, or hidden areas that may contain gem rewards.
  1. Check for daily rewards, quests, or event tasks if the game has them.

Fastest practical approach

If Speed Training works like other Roblox speed simulators, the fastest loop is usually: train, rebirth, collect gem reward, repeat. Codes are the easiest one-time boost, while chests or timed rewards are better for bigger bursts of gems.

Note

I’m basing this on public Roblox speed-simulator info, since “Speed Training” can have slightly different mechanics depending on the exact game version.