Is there a Steam Market in My Party Is Grinding?
When the developer posted on 2026-09-01, they described the opening as still to come — “this week”, with no time named. On September 3, 2026, the Market officially opened with Ver. 1.0.17; on September 4, 2026, the developer confirmed ongoing stabilization work. This page tracks the official status against the developer’s timeline and the global achievement data, and gets refreshed when either one moves.
TL;DR: On 2026-09-01 the developer announced the Market “will open this week”, and officially opened it on September 3, 2026 (Ver. 1.0.17). On September 4, 2026 the developer announced active remediation for intermittent Market issues, rescheduled the Market Slots Pack DLC to early next week, and scheduled Hell difficulty for September 6 at 00:00 UTC, which the developer then confirmed opened on the day. Two free listing slots unlock 7 and 14 days after your own first login, a slot stays locked for at least 12 hours once you list, and the higher difficulties that were supposed to arrive first have been pushed behind it. The three Market achievements read 0.0% on launch day and 0.2% as of 2026-08-30. That rise is a move in the displayed figure and nothing more: 0.0% is itself a rounded value, so it never meant nobody held them, and none of this shows how they were awarded. 0.2% is also the floor value for the whole 59-achievement list — shared with several genuinely hard achievements — so it cannot tell us how many.
Last updated: 2026-09-04 · Checked against official Steam announcement feed
Official status
Official developer announcements quoted directly from the Steam Community feed, tracking the Market timeline from launch announcement to live deployment and stabilization.
My Party Is Grinding Is Now Available!
“Normal, Hard, and Nightmare are currently available. Hell and Inferno will be unlocked gradually before the Steam Community Market opens, provided that no major balance issues are discovered.”
My Party Is Grinding Is Now Available!
“We plan to open the Steam Community Market within one week after launch. Each player can unlock two listing slots free of charge.”
Steam Community Market Opens This Week & Upcoming Updates
“The Steam Community Market for My Party Is Grinding will open this week. We will announce the exact opening time separately.”
Steam Community Market Opens This Week & Upcoming Updates
“We originally planned to release multiple higher difficulties before opening the Market. However, recent balance adjustments following the buff and debuff duration fixes have created a larger progression gap between players than expected. We also believe the Market economy needs time to stabilize after launch. For these reasons, we will not release several difficulties at once. We are currently planning to open Hell difficulty first sometime next week.”
Ver. 1.0.17 Update & Steam Community Market Launch
“The Steam Community Market will become available once maintenance is complete.”
Hell Difficulty Release, Market DLC Schedule & Player Reward
“We are currently experiencing intermittent issues with the Steam Community Market and are continuing to work on improving its stability. As a result, the Market Slots Pack DLC is now scheduled for release early next week.”
Hell Difficulty Release, Market DLC Schedule & Player Reward
“At launch, we announced that an additional difficulty would become available before the Steam Community Market opened. However, this schedule was delayed longer than expected while we addressed various server and balance issues. To provide new content sooner for players who have already reached the higher stages, Hell difficulty will now open at the following time: September 6 · 00:00 UTC”
Hell Difficulty Opens Today & Server Restart
“Hell difficulty opens today. During this server restart, we will also address an issue that prevented some items purchased from the Steam Community Market from being claimed through the Trade Vessel.”
Last updated: 2026-09-04. Read from the 10 most recent posts on the developer’s Steam announcements feed on 2026-09-06. The Market officially opened on September 3, 2026 following the Ver. 1.0.17 maintenance (08:30–10:00 UTC). On September 4, 2026, the developer confirmed intermittent stability issues, announced active stabilization work, rescheduled the Market Slots Pack DLC to early next week, and confirmed Hell difficulty opens September 6 at 00:00 UTC — which the September 5 post then announced as happening, alongside a five-minute server restart.
What the achievement data shows
On 2026-08-27 (launch day) all three Market achievements read 0.0%. As of 2026-08-30 they read 0.2%. The displayed figure moved; that is all it says. A displayed 0.0% is itself a rounded number, so it never meant "nobody", and how any of these were awarded is not something these figures can show.
| Market achievement | Achievement | Global completion |
|---|---|---|
| Bought an item on the Market | ACH_MARKET_BUY | 0.2% |
| Sold an item on the Market | ACH_MARKET_SELL | 0.2% |
| Hidden or unmatched, id ACH_MARKET_LIST | ACH_MARKET_LIST | 0.2% |
Source: Steam GetGlobalAchievementPercentagesForApp · pulled 2026-08-30. Each figure is holders divided by owners, and both sides move — usually up on a game this new, occasionally down when buyers arrive faster than they unlock — so read them against the pull date rather than as a fixed property of the game.
The wording in the left-hand column is our reading of the achievement’s API id (ACH_TOWER_ENCHANT and so on). Steam publishes ids on this endpoint and display names on a different page, and never states which goes with which, so that reading is an inference from the developer’s own naming rather than a published fact. Where an id gives us nothing to read, the column says so instead of guessing.
0.2% is also the lowest value on the site’s entire 59-achievement catalogue as of 2026-08-30 — 8 achievements share it, including "Even Hell Has Deadlines" (Clear stage 4-10 on Hell.), which nobody would call unimplemented. That pattern says this is around where Steam’s public API rounds a very small holder count, for any achievement. It is consistent with “a handful of players” and equally consistent with “quite a few more than that” — we cannot tell those apart from this number alone, so we do not put a headcount on it beyond the published rate.
Listing slot rules
Published in the 2026-09-01 announcement, which was posted while the Market was still closed. Every line here is the developer’s; that post states no prices, so none appear here.
Unlocked on a timer from your first login
The clock starts at your first login following the official launch — not at the game’s release, so two players who bought on the same day can unlock on different days.
- Slot 1: 7 days after your first login
- Slot 2: 14 days after your first login
Market Slots Pack DLC
Adds 4 Trade Vessel slots with no waiting period, usable immediately after purchase. It launches with a 10% discount for the first 7 days. Originally scheduled alongside Market launch, the developer announced on September 4, 2026 that the DLC is now planned for early next week while Market stability is improved. This announcement does not state a price.
A slot does not free up when the item sells
Once you list, that slot stays reserved for at least 12 hours from the time of listing. Selling inside that window does not release it early, and an item still unsold when the timer ends keeps the slot until it sells or you withdraw it — so the hold is a floor, not a duration.
Source: the developer’s 2026-09-01 announcement. We have not tested any of these rules in-game.
FAQ
- Is the Steam Community Market open in My Party Is Grinding?
- Yes. The Steam Community Market officially launched on September 3, 2026 following the Ver. 1.0.17 maintenance (08:30–10:00 UTC). On September 4, 2026, the developer confirmed that the Market is experiencing intermittent stability issues and that active stabilization is underway. Free Trade Vessel slots unlock on a personal timer (slot 1 after 7 days, slot 2 after 14 days from your first login), and the Market Slots Pack DLC (+4 slots) has been rescheduled to early next week while stability work concludes. Last updated: 2026-09-04.
- When does the My Party Is Grinding Steam Market open?
- The Market opened on September 3, 2026 following the Ver. 1.0.17 maintenance (08:30–10:00 UTC). The developer had previously stated on September 1, 2026 that it "will open this week", and delivered on that window with the September 3 deployment. On September 4, 2026, the developer reported intermittent connection issues under active remediation, with Hell difficulty following on September 6, 2026 at 00:00 UTC — announced as open on the day, in a post that also fixed Market items not being claimable through the Trade Vessel.
- How many Market listing slots do you get for free?
- Two, and they unlock on a timer counted from your own first login after launch, not from the game's release date: slot 1 after 7 days, slot 2 after 14 days. A paid Market Slots Pack DLC adds 4 more with no waiting period, launching early next week at 10% off for its first 7 days (postponed from launch day due to market stability adjustments). This announcement does not state the DLC's price.
- Can you reuse a listing slot as soon as the item sells?
- Not if it sells inside the first 12 hours: the developer states the slot stays reserved for at least 12 hours from the moment you list, and selling early does not free it before that timer ends. After the timer, an item that is still unsold keeps occupying the slot until it sells or you withdraw it. The same rule applies to free and DLC slots.
- Does the achievement data prove nobody has used the Market?
- No — and we want to be precise about that rather than overstate it. On launch day (2026-08-27) the three Market achievements read 0.0%; as of 2026-08-30 they read 0.2%, which is the lowest value on the entire 59-achievement catalogue, tied with 7 others — including "Even Hell Has Deadlines" (Clear stage 4-10 on Hell.). That pattern is consistent with 0.2% being roughly where Steam's reporting rounds a very small number of holders, whatever the achievement is. It tells us the displayed rate moved and that it is still at the bottom of the list — it cannot tell us whether that is one player or a few dozen, so we do not claim "almost nobody" or any other number of users beyond the published rate itself.
- Are the higher difficulties still coming before the Market?
- No — the developer reversed that launch-day plan. The Market opened first on September 3, 2026. On September 4, 2026, the developer scheduled Hell difficulty for September 6, 2026 at 00:00 UTC, and on September 5 announced it as opening that day. See the Hell difficulty page for the full sequence. The higher difficulties were postponed because of a wider-than-expected progression gap after buff and debuff duration fixes, as well as to give the Market economy time to stabilize.
- What items can be traded on the Steam Community Market?
- According to the official Steam store page and developer announcements, players can deposit gear of Epic grade or higher and materials of any grade into their Trade Vessel to register them in their Steam Inventory. Once in the inventory, they can be listed and traded with other players on the Steam Community Market. All item ownership and transaction outcomes are decided and verified server-side.
- What is the latest game version and what balance adjustments were made after v1.0.13?
- The latest version is Ver. 1.0.17, deployed on September 3, 2026. Addressing earlier stage difficulty spikes after buff and debuff durations were fixed, Ver. 1.0.17 extended the duration and reduced the cooldown of certain buff and debuff skills, and reduced the HP and ATK of monsters in Nightmare difficulty X-9 stages. It also eliminated gear destruction on failed enchanting (50% → 0%) and rebalanced Defense and Elemental Resist Orbs.
What you can trade after Market opens & precautions
Based directly on the official Steam store page (“Trade Items on the Steam Community Market”) and official announcements through 2026-09-04:
- Tradable gear: Only gear of Epic grade or higher can be deposited into your Trade Vessel to register them into your Steam Inventory for trading on the Steam Community Market. Lower grade gear cannot be registered or traded.
- Tradable materials: Materials of any grade can be deposited into your Trade Vessel and traded on the Market.
- Server-side verification: All progress, item transfers, and Market transactions are decided, stored, and verified on the server. Client tampering and item duplication are strictly prevented.
- Free listing slots: Each player unlocks 2 free Trade Vessel slots on a personal timer starting from their first login after the official launch (Slot 1 after 7 days, Slot 2 after 14 days).
- 12-hour minimum slot hold: Once an item is listed, that slot remains reserved for at least 12 hours from the moment of listing. Selling early does not release the slot before the 12-hour timer ends; an unsold item keeps occupying the slot until sold or withdrawn.
- Market Slots Pack DLC timing: The paid DLC (+4 slots, 10% launch discount for 7 days, immediate use) was delayed from launch to early next week because the developer is resolving intermittent Market connection issues.
- Current status & version: As of 2026-09-04, the game is on Ver. 1.0.17. The Market officially opened on September 3, 2026, and the development team is actively stabilizing server connections. Hell difficulty opened on September 6, 2026 at 00:00 UTC, per the developer’s own announcement.
Sources: Official Steam Store Page (“Trade Items on the Steam Community Market”), developer announcements on 2026-09-01 (GID 1842212951312805), 2026-09-03 (Ver. 1.0.17 patch notes), and 2026-09-04 (GID 1842846814445235). Last updated: 2026-09-04.
Last updated: 2026-09-04. This site is an unofficial fan-made information hub and is not affiliated with Valve, Steam, SUPERLINK Inc., or the My Party Is Grinding team.