Based Gemstone Crab
Train combat efficiently in Old School RuneScape with Based Gemstone Crab, a reliable and low-effort Gemstone Crab training bot for RuneMate. Designed for long AFK sessions and stable XP gains, this bot focuses on safe, consistent combat training with minimal setup.
Based Gemstone Crab is suitable for mains, alts, and pures, and works well for players who want predictable combat XP without constant attention. It fully automates solo Gemstone Crab combat, allowing uninterrupted training without relying on other players to maintain aggression.
Gemstone Crab combat training in OSRS
Gemstone Crabs are a popular AFK combat training method due to their high defensive stats and low incoming damage. This bot is built specifically around those mechanics, automatically handling positioning, combat flow, and recovery.
Learn more about Gemstone Crabs and their mechanics on the official Old School RuneScape Wiki:
Gemstone Crab – OSRS Wiki
Bot settings and ease of use
New users start with a default configuration that works immediately without any setup. Advanced users can customise combat style, prayers, potions, banking behaviour, and training goals.
All settings are saved automatically, allowing returning users to continue exactly where they left off.
Free trial and versions
Based Gemstone Crab includes a free trial that allows you to test the full feature set before upgrading. Any progress made during the trial carries over seamlessly.
Available versions:
- Trial Full premium feature access for 1 hour every 3 days.
- Essential Core functionality only at a reduced rate of $0.05 per hour.
- Premium Full feature set including gem mining, gem bag support, training goals, special attacks, potions, and advanced combat mechanics.
Automated solo Gemstone Crab combat
The bot fully handles solo Gemstone Crab combat without requiring assistance from other players. It maintains aggression, manages positioning, and continues fighting until resources need to be replenished.
Banking and restocking support
Automatically banks for food, potions, gear, and consumables when required. This ensures fast returns to combat and minimal downtime during long training sessions.
Potion, prayer, and combat support
Supports up to 16 different potions, all of which can be restocked automatically. Offensive prayers are fully supported and toggled intelligently to improve XP rates while conserving resources.
Rock cake and locator orb support
Detects and uses rock cake or locator orb in a natural way, enabling low-HP strategies such as Dharok’s training. This allows higher damage output and improved XP per hour.
Magic, ranged, and special attacks
Supports all magic spells via autocast, as well as ranged combat setups. Special attacks, saturated heart usage, and combat boosts are handled automatically when enabled.
Fatigue, breaks, and AFK behaviour
Built-in fatigue, break, and AFK systems simulate natural play patterns. These systems vary session behaviour and help reduce repetitive actions during long training sessions.
Failsafes and account protection
Multiple failsafes activate automatically if unexpected conditions occur, helping prevent deaths, stalled states, or unintended behaviour during extended runs.
Training goals and stop conditions
Configure the bot to stop at a specific killcount, allowing controlled and goal-based training sessions without manual supervision.
PlayerSense and unique behaviour
Based Gemstone Crab uses RuneMate PlayerSense to generate unique behaviour profiles per account, ensuring sessions vary naturally over time.
Learn more about RuneMate PlayerSense here:
Tutorial - How, and why, to use the PlayerSense API
Custom statistics and tracking
Track your performance with detailed runtime statistics, including XP gained and other key metrics, directly from the bot interface.
Spoiler content hidden.
Frequently Asked Questions
- Is Based Gemstone Crab safe to use on RuneMate?
Yes. It uses PlayerSense, break systems, and multiple failsafes to reduce repetitive behaviour. - Does it support Dharok’s training?
Yes. Low-HP Dharok’s setups using rock cake or locator orb are fully supported. - Can I train magic or ranged?
Yes. All magic spells and ranged setups are supported with potion and prayer handling. - Does the bot handle banking automatically?
Yes. It banks for food, potions, and gear whenever needed.
Most recent
saltysteve89
Jan 18, 2026
Version: 1.1.2
Works great. Thank you.
Author Response
Thank you for the review!
jared03131997
Jan 09, 2026
Version: 1.1.1
Love the bot! the only issue im having is its charging me more then then the 3 cents with my loyalty level has earned from how much i use it
Author Response
The base price is $0.05 for the essential version. The premium version is +$0.03 meaning $0.08/h total
Dylannn
Dec 21, 2025
Version: 1.1.0
I won't lie - I ran this bot for 20 hours with no ban. Then took a break and did some GOTR and then I ran the bot another 14 hours. I used the spec option and enabled fatigue. No ban and going on another 8 hours. Bot does everything I've needed and some.
Author Response
Thank you! <3
bewalas
Nov 24, 2025
Version: 1.0.14
This is THE BEST script i have ever used and is probably the MOST undetectable one out there. Ive gotten multiple accounts to all 99 combats using it and never a single detection, ive run it for over 24 hrs straight before with no issues. I think what makes it so undetectable is the fact that theres just so much traffic at the crab their system isnt able to tell who is who as easily. Thanks for this gem, Based!
Author Response
AWESOME review! Thank you so much! <3
sins90
Aug 24, 2025
Version: 1.0.2
Ran for 6 hours without an issue. Excellent script. Only had one issue where it gave me an exception error and I haven't been able to replicate it. Easy to setup and customize as well. 10/10