Catalog 
UNDECEMBER: The Forge
LiveActionMelee actionAdventureRPGAction RPG
- Platforms
- Release:
- 2022
- Developer:
- Needs Games
- Scale:
- Average concurrent players387
- Player rating:
- 52.4% · 20.7K
- Profile data as of:
- September 2, 2026
UNDECEMBER is a Hack & Slash Action RPG in which players are able to surpass the conventional limits of skills by endlessly combining variety of Skill and Link Runes. Become a Rune Hunter and experience the joy of farming and growth!
Screenshots
Images from the source page, in source order. Select an image to view it full size.
Videos
Videos from the game’s source page, in source order. Select one to open the original.
Overview
- Franchise
- Unknown
- Release date
- Windows — October 11, 2022
- iOS — 2022
- Android — 2022
- Developer
- Publisher
- Age rating
- ESRB T — Teen, age 13+ · Steam Store
- PEGI 16 — age 16+ · Steam Store
- ACB MA 15+ — Mature Accompanied 15+ · Steam Store
- GRAC 18+ — Ages 18+ · Steam Store
- ClassInd 16 — Ages 16+ · Steam Store
- Content warnings
- Nudity or sexual contentFrequent violence or goreMature content
- Interaction modes
- Single-playerMultiplayerOnline PvPOnline co-opCross-platform play
- Session capacity
- Unknown
- Access model
- Free to play
- Monetization
- In-app purchases
- Storefront price
- Unknown
- Store contents
- Unknown
- Languages
- EnglishRussianGermanFrenchSpanishPortuguese, BrazilJapaneseKoreanChinese, Simplified scriptChinese, Traditional script
Classification
- Genres
- ActionMelee actionAdventureRPGAction RPGEvidence:
- Setting and subject matter
- Fantasy Evidence:
- Camera
- Third-person Evidence:
- Visual style
- Unknown
- Combat system type
- Melee combat Evidence:
Scale
Concurrent players · period average
387
August 16, 2026 — September 15, 2026
under 100over 1 million
- Detailed value
- 386.78
- Coverage
- Steam
- Origin
- Published by source
- Confidence
- Medium — The site's calculation method is not published
- Basis
- Average concurrent Steam players over 30 days from Steam Charts: 386
- Date observed
- September 15, 2026
- Source
- Steam Charts
Concurrent players · period peak
1,730
August 16, 2026 — September 15, 2026
under 100over 1 million
- Detailed value
- 1,728
- Coverage
- Steam
- Origin
- Published by source
- Confidence
- Medium — The site's calculation method is not published
- Basis
- Peak concurrent Steam players over 30 days from Steam Charts: 1,728
- Date observed
- September 15, 2026
- Source
- Steam Charts
- Ratings
- players52.4% · 20.7KSteam, US storefront · Steam reviews
- players74.6%Global · IGDB mirror
- Last update
- August 26, 2026 — 9/10 (Thu) Update Change Notice (20 updates over 90 days) · Steam update feed
Concurrent players
period average · October 2022 — August 2026 · Steam · published by source · Steam Charts
23,8000
October 2022August 2026
- Change over period
- −99%decrease from 23,800 (October 2022) to 301 (August 2026)
- Gaps
- No gaps in observed months
- Observations
- 47
Mechanics
Key game systems from the Mechanics Catalog. Assessment axes are independent and are not combined into a single score. An unassessed mechanic is unknown, not absent.
Clan system
Not assessedA persistent player organization created or recognized by the game itself, with a stable membership, a life beyond one session, a shared identity, functions, and goals.
Player economy
Not assessedAn in-game system where player decisions materially influence at least part of the production, supply, distribution, or price of in-game value.
Territory control
Not assessedA system where players or organizations capture, hold, and use parts of the game world with lasting consequences.
Competitive PvP
Not assessedStructured competition between players with rules and a measurable outcome, usually including skill-based matchmaking.
Live service and updates
Not assessedA regular rhythm of meaningful updates, including seasons, patches, events, and a roadmap that supports a long product life.
Character progression
Not assessedA system for long-term character or account development through levels, skills, equipment, and specializations.
Games in the same genres
Includes this game’s genres (Action, Melee action, Adventure, RPG, Action RPG) and their subgenres, sorted by concurrent players from highest to lowest.
