Exploring Dynasty Warriors: Origins' overworld yields valuable rewards for future battles. While Pyroxene farming creates gems, you'll also discover Old Coins, whose purpose isn't immediately obvious.
Several methods exist for acquiring Old Coins, and you'll accumulate a substantial number (hundreds) throughout the game. Here's their usage and acquisition methods.
Old Coins are unusable in Chapter 1; focus on the main story. After Chapter 2, complete these main story battles:
Completing these battles leads you back to Ji, where you'll meet Sima Hui. After the conversation and obtaining incense for the Innkeeper, the Shui Jing Retreat appears near Ji. Here, you can exchange Old Coins with Sima Hui. Besides checking bonds and rewatching interactions, you can redeem Old Coins for rewards.
Rewards are tied to specific Old Coin milestones; redeem them whenever possible.
Required Old Coins
Reward
With 500 Old Coins to find, avoid early farming; more methods unlock gradually. Acquisition methods include:
Overworld Old Coin icons are small and only appear up close, unlike Pyroxene. While rewards vary in usefulness, Old Coins accrue naturally through gameplay.