Lumiri GameDB
Game library / Serment - Contract with a Devil
Serment - Contract with a Devil
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GOG Steam

Serment - Contract with a Devil

Catalogue information flags mature content for this game.

Serment - Contract with a Devil is a visual novel/dungeon crawler hybrid featuring highly tactical turn based RPG battles, challenging dungeon puzzles, optional minigames and most importantly, a lot of cute anime girls.

Released · 2019-02-01

At a glance

About this game

Core game information and the store records it came from.

Title
Serment - Contract with a Devil
Content
Game
Release date
2019-02-01
Developer
Nkt Studio
Publisher
Sekai Project
Platforms
Windows, Linux, macOS
Steam Deck
Playable Valve's compatibility rating
Connected stores
2
GOG GOG source details
Store title
Serment - Contract with a Devil
Product ID
1120573264
Developer
Nkt Studio
Publisher
Sekai Project
Store release date
2019-02-01
Source checked
2026-10-19 02:25 UTC

Open official store page ↗

Steam Steam source details
Store title
Serment - Contract with a Devil
Product ID
632900
Developer
Nkt Studio
Publisher
Sekai Project
Store platforms
Windows + Linux + macOS
Source checked
2026-10-18 15:20 UTC

Open official store page ↗

How you can play

Features and tags

Select a feature to find other games that have it.

Store tags

Genres

  • RPG

Categories and genres from the Steam store, observed 2026-10-18. Store tags from Steam and GOG, as players and the store apply them.

Compare & explore

One game, connected stores

Each store keeps its own prices and observations. We prefer the latest recorded EUR price for Europa. When the displayed currency differs from the store amount, a separate approximate value may use the latest available ECB reference rate.

Some store links may be affiliate links. We may earn a commission from qualifying purchases, at no extra cost to you. This does not affect prices, ratings or rankings. How commercial links work.

Lumiri price context

Recorded price comparison

Matching store titles. One currency. One market.

EUR SE

Lowest recorded amount

2.25 EUR

GOG

Recorded 2 h ago

Difference between stores

12.54 EUR

Lowest to highest included amount.

2 comparable stores

Distance from observed low

At observed low

GOG listing only. Low: 2.25 EUR.

Last seen
Newest included record
Oldest included record

2 included price records from 2 stores · 2 linked listings

See the 2 included observations
  • GOG history →Serment - Contract with a Devil
    2.25 EUR
    2 h ago
  • Steam history →Serment - Contract with a Devil
    14.79 EUR
    12 h ago
How this comparison works

Only original EUR amounts recorded for SE and matching titles linked to this game are compared. Edition words and numbers must match. Other editions, source-market fallbacks and currency estimates are excluded.

These are recorded observations. Check the store for the current price, availability and included content. Historical lows belong to the named listing in this market and reflect the history Lumiri GameDB has collected.

GOG

GOG

Serment - Contract with a Devil

2.25 EUR

85% off 14.99 EUR

GOG source-market price · FI. Original store amount.

Price recorded 2026-10-19 01:28 UTC

Player activity

Observed Steam player history

Latest 1,000 points at most. Bucket averages; the first bucket is included in full. Summary averages are approximate.

Last observed Steam players
0
2026-10-18 16:05 UTC
Observed peak · 7d
0
Within the displayed history
All-time observed peak
0
· since Lumiri started observing
Average players · 7d
0
1 local samples · approximate for grouped data
First signal received

0 players observed

Observed player history is starting. The trend chart will appear automatically after the next collected sample.

View exact player observations
  • 2026-10-18 16:00: 0 average players

Observed by Lumiri GameDB during 7d. Times are UTC. Lines connect observations; gaps are not measured.

Open full player history

  • Samples: 1
  • Minimum: 0
  • Maximum: 0
  • Average: 0
Recorded prices

Price history · Steam

EUR observations for market SE. History belongs to the selected store listing; regional prices and taxes may differ.

Historical low observed by Lumiri GameDB: 14.79 EUR, last seen

First recorded price. More observations will build the price history.

View 1 recorded prices
  • 2026-10-18 15:20: 14.79 EUR

Prices observed by Lumiri GameDB in EUR.

Catalogue activity

Recent changes

Prices, release dates and store listing updates we detected. Repeated store refreshes are grouped.

  1. Store details updated GOG

    Title, product type, release date, availability, platforms, store details