Mountain Ruins
Mountain Ruins is a medium expedition in SideQuest. It costs 600 coins to unlock. A solo run takes 3,500 steps. It has eight crafting materials and Wanderer's Ruins Notes.
 | |
| Difficulty | Medium |
|---|---|
| Unlock | 600 coins, one-time purchase |
| Solo steps | 3,500 |
| Party size | 2 to 4 players |
| Discoveries | 9 |
Unlocking
Buy Mountain Ruins for 600 coins from the expedition selection screen or Coin Shop. This is a one-time purchase. Completing another expedition does not unlock it automatically.
Every player in a co-op party must have this expedition unlocked.
Getting started
Open Quests, go to Expeditions, and select Mountain Ruins. After buying the route, start a solo run, create a party with friends, or use Quick Join to find an open party.
For a solo run, walk 3,500 steps after starting, then claim the reward. Expedition Speed can reduce the walking needed for solo progress. Co-op uses each player's synced walking steps.
Rewards
These are the base rewards for one solo completion, before pet bonuses or other boosts. Co-op coins and XP are listed below.
| Reward | Amount or chance |
|---|---|
| Coins | 100 to 175 |
| XP | 175 |
 Adventurer's Crate |
16.856% |
 Hero's Chest |
13.72% |
 Legendary Vault |
2% |
 Common Egg |
22% |
At most one equipment chest drops per completion. Legendary Vault is checked first at 2%. If that roll misses, Hero's Chest is checked at 14%. If that roll misses, Adventurer's Crate is checked at 20%. The table shows the final chance of receiving each chest after these checks. Drop Rate can increase the checks.
The pet egg roll is separate from the chest rolls. Egg Luck and Drop Rate can increase its chance. Egg protection guarantees a Common Egg by the 8th completion on this route without an egg. Finding an egg resets that route's counter. Solo and co-op completions share the counter.
Each discovery has its own roll, so one completion can give several discoveries or none. See the discovery table for the base chances.
Co-op
Mountain Ruins supports parties of two to four players. Everyone walks at the same time. Each player has their own rewards; the coins and XP are not split between the party.
Steps and completion
Each player's usual share is 2,100 steps. With shared contributions, everyone must reach their 1,680-step marker, and the party must also reach its team goal. Each player can contribute up to 2,520 steps toward that goal.
| Players | Team goal | Usual share each |
|---|---|---|
| 2 | 4,200 steps | 2,100 steps |
| 3 | 6,300 steps | 2,100 steps |
| 4 | 8,400 steps | 2,100 steps |
For example, a two-player party can finish with 1,680 steps from one player and 2,520 from the other. Two players at 1,680 each still need 840 more team steps.
Parties using the older equal-share rule require all players to reach 2,100 steps each. Check the markers shown in your party. If someone leaves, the game adjusts the party goal and reward bonus for the remaining players. At least two players must remain.
Co-op rewards
The party bonus increases coins and XP. It does not multiply equipment chest, pet egg, or first-discovery chances. These amounts are per player, before pet bonuses and other boosts.
| Players | Bonus | Coins each | XP each |
|---|---|---|---|
| 2 | +15% | 115 to 201 | 201 |
| 3 | +30% | 130 to 227 | 227 |
| 4 | +50% | 150 to 262 | 262 |
The game adds the party bonus to each player's coin and XP reward and rounds the bonus down. See Co-op Expeditions for the general co-op guide.
Repeat material copies
First discoveries use the base rolls in the table below. After finding a material, later completions can give extra copies for crafting.
Without boosts, a solo repeat roll uses the material's base chance. Shared-contribution parties use 48% of that base chance for repeat copies. For example, Emerald Ore has a 30% first-find chance and a shared co-op repeat-copy chance of 14.4%. The party's coin and XP bonus does not increase this chance.
Equal-share parties use 60% of the base chance for repeat copies. Drop Rate, Rare Find, and the guild's Discovery Chalice can increase repeat-copy chances. Wanderer's Ruins Notes is a unique keepsake and does not drop extra crafting copies.
Discoveries
All chances below are per completion, before boosts. The first-find column applies to discoveries you have not found yet. The shared co-op column applies to extra material copies after the first find.
Scroll the table sideways to see all chances.
| Item | Rarity | First find | Shared co-op repeat |
|---|---|---|---|
 Emerald Ore |
Uncommon | 30% | 14.4% |
 Silver Ore |
Uncommon | 28% | 13.44% |
 Gold Ore |
Uncommon | 26% | 12.48% |
 Amethyst Ore |
Uncommon | 24% | 11.52% |
 Sapphire Ore |
Rare | 22% | 10.56% |
 Golden Ring |
Rare | 20% | 9.6% |
 Ice Shard |
Rare | 18% | 8.64% |
 Frozen Teardrop |
Rare | 16% | 7.68% |
 Wanderer's Ruins Notes |
Rare | 16% | Unique keepsake |
Each item page has its artwork, crafting uses, and exact Tap to examine text from the game.
Progression
- First solo completion: awards the Mountain Ruins Explorer badge.
- All nine discoveries: unlocks the Mountain Ruins background. Discoveries from solo and co-op both count.
- Crafting: keep extra material copies for NPC recipes. The crafting menu keeps one original copy of each material.
- The Wanderer's quests: solo and co-op completions count toward expedition quests. Accept the quest before starting the runs needed for its objective.
- Grix: this route's discoveries count toward the 35 unique discoveries needed to meet Grix. Completing its collection gives nine of those discoveries.
- Next route: Dark Forest costs 1,500 coins to unlock and takes 6,000 steps solo. It is purchased separately; completing Mountain Ruins does not unlock it automatically.
Related guides
Expeditions · Co-op Expeditions · Crafting and Discovery Materials · Items · Dark Forest
References
SideQuest expedition information, checked 4 November 2026. Base values are before bonuses.