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Journey to rivers, swamps, ponds and hidden fishing spots as you look for the mysterious River King to help your younger sister wake from her unexplained slumber. But you are not alone on this adventure, make friends with the magical creatures of Mystic Valley and unlock their special abilities to help you. You are your sister's last hope and it will take all of your fishing skill to catch the elusive River King!
River King: Mystic Valley DS price & price history
The average CIB price for River King: Mystic Valley (DS) was $52.20 30 days ago and is $53.00 now — up $0.80. Real-market prices from eBay sold listings, updated daily — see the full price chart above.
Frequently asked questions
- How much is River King: Mystic Valley (DS) worth?
- River King: Mystic Valley for DS is worth $53.00 on average for a complete-in-box (CIB) copy, based on recent eBay sold listings.
- Is River King: Mystic Valley going up or down in price?
- The price is trending up — it was $52.20 30 days ago and is $53.00 now, a $0.80 increase.
- How does the 100 Coins price compare to PriceCharting?
- PriceCharting publishes one price per condition for River King: Mystic Valley on Nintendo DS. 100 Coins computes its own average from the individual eBay sold listings it tracks for this exact edition, weighted so recent sales count for more — which is why the two differ. Both numbers are shown on every condition card above.
- Where does 100 Coins get its price data?
- All prices on 100 Coins come from real eBay sold listings — actual completed transactions, not asking prices or estimates. Prices are updated daily.
| Source | Date | Price | Completeness | Description | Report |
|---|---|---|---|---|---|
| eBay | 2026-08-17 | $69.98 | Sealed | River King: Mystic Valley (Nintendo DS, 2008) Brand New - Sealed | |
| eBay | 2026-08-15 | $48.00 | CIB | Natsume River King: Mystic Valley Nintendo DS. CIB. | |
| eBay | 2026-08-05 | $65.31 | CIB | River King:Mystic Valley NintendoDS Game2007 Tested Working 100%Complete In Case | |
| eBay | 2026-07-26 | $55.00 | CIB | River King: Mystic Valley Nintendo DS 2008 CIB Complete with Manual & Inserts US | |
| eBay | 2026-07-07 | $18.19 | Game Only | River King: Mystic Valley (Nintendo DS, 2007) Loose Cart - Authentic - Tested | |
| eBay | 2026-07-05 | $59.99 | CIB | Natsume River King: Mystic Valley Nintendo DS. CIB. | |
| eBay | 2026-07-03 | $19.00 | Game Only | River King: Mystic Valley! - GAME ONLY - NINTENDO DS - FAST SHIPPING! 617a | |
| eBay | 2026-06-02 | $49.99 | CIB | River King: Mystic Valley (Nintendo DS, 2008) Tested! Complete CIB | |
| eBay | 2026-05-29 | $54.40 | CIB | River King: Mystic Valley (Nintendo DS, 2008) CIB Complete Works Reg Card - Rare | |
| eBay | 2026-05-16 | $59.99 | CIB | NINTENDO DS RIVER KING MYSTIC VALLEY CIB W/ MANUAL & INSERTS! TESTED! RARE! |
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