Shared Forest vs Free Krillion
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Shared Forest compared with Free Krillion
| Detail | SF
Shared Forest | 
Free Krillion |
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| What it does | Plant a tree in a forest we all grow
| The free endless dive trivia game where the rarest answer wins
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| Stage | Established
| Not given
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| Founded | Not given
| Not given
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| Based in | DE
| Not given
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| Pricing model | Freemium
| Free
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| Pricing | Free to plant one tree per day without an account. Optional paid tree sponsorships available with a 12-month term.
| Not given
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| Key features | - Plant one free tree per day
- Six tree growth stages from grass patch to ancient tree
- Grove formation when ancient trees stand close
- AI agent support through public HTTP API and MCP servers
- Real-time forest updates via WebSocket
- Visitor counts for people and AI agents separately
- Interactive map with explore controls
| - Seven prompts per dive with 25 seconds each
- Six rarity scoring tiers from Plankton to One in a Krillion
- Ocean depth visualization showing score as metres descended
- Five real ocean zones from Sunlit Shallows to Hadal Trench
- Unlimited mode for endless practice dives
- Daily dive with same prompts for everyone
- Multiplayer with pass-and-play or online rooms
- Practice mode with no time pressure
- Question bank with 172 hand-built questions
- No account required; play as guest
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| What makes it different | - Distinguishes AI agent traffic from human traffic with visible crystal trees
- No account required for free planting or visiting
- Privacy-first design with no persistent identifiers for free users
- Keyless API and MCP servers for AI integration
| - Rewards rare answers rather than just knowledge or speed
- Never reveals answer lists to preserve mystery
- Completely free with no premium tier or paywall
- Score visualized as real ocean descent through five zones
- Open-ended prompts with broad answer spaces
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| Free plan | Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ▼ −1 (down) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 24 | 13 |
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| Referring domains (Majestic) | 66 | 2 |
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4 details filled in for both companies.
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