# System Crash \- Underworld

Summer DB entity ID: 20846e33\-d270\-449e\-a05a\-a18dfed0de62

Steam App ID: 962540

Underworld introduces an exciting new story campaign and a powerful new card set focused on turning your Archive \(discard pile\) into a potent resource\.   From Agents and Support cards that gain strength the more you discard, to Events that let you bring cards from your Archive back into play, Underworld adds a range of exciting new options to deck building\.  The Underworld set is powered by a unique risk\-reward dynamic\. Underworld cards can generate huge burst damage, but you'll need to burn your own deck to fuel your combos\. Played well, you can sweep your opposition off the board\. Played poorly, you burn down your own deck and leave yourself weakened and exposed\. Features:  \- An exciting new story campaign\.  \- 30 New missions\.  \- 20 New cards to collect\.  \- New card mechanics that allow you to burn your own deck for power\.   Note \- The DLC campaign, when installed, will be found under the "Choose Module" main menu option\.

## Game information

- Type: dlc

- Developer: Rogue Moon Studios

- Publisher: Rogue Moon Studios

- Release date: Oct 22, 2018

- Coming soon: false

- Free to play: false

- Parent Steam app: 481180

- Genres: Indie, Strategy

- Categories: Single\-player, Downloadable Content, Steam Achievements, Family Sharing

- Platforms: windows

- Website: Not collected

- Screenshots: https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/962540/ss\_08978aa08fa5fd6ff5163b43615b2aa6bf1983dc\.1920x1080\.jpg?t=1671718171, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/962540/ss\_4d64e94cca4a687380d34244167926d43a49fb1e\.1920x1080\.jpg?t=1671718171, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/962540/ss\_603f10174f245a47cf3df3d566851e78bd563b95\.1920x1080\.jpg?t=1671718171, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/962540/ss\_390cc2382457af2a050931172de7da2648036c3f\.1920x1080\.jpg?t=1671718171, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/962540/ss\_07b6bd2cb68ba54456ab2146196d82ee000dcbe0\.1920x1080\.jpg?t=1671718171, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/962540/ss\_1d258d27da4b76e92a2789f4f0712fb838a5620d\.1920x1080\.jpg?t=1671718171, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/962540/ss\_1c6353cf6a993de73d6b550266c13a9a305264b5\.1920x1080\.jpg?t=1671718171

- Price: 499 minor units USD; discount 0%

- Price country: US

## Observed metrics

- Current players: Not collected

- Steam review count: 11

- Steam positive reviews: 8

- Steam negative reviews: 3

- Steam positive percentage: 72.72727272727273%

- Summer DB rating: No native votes

Review filters: \{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}

## Player history

[Seven-day chart data as Markdown](/api/v1/entities/20846e33-d270-449e-a05a-a18dfed0de62/player-metrics?days=7&format=markdown) · [JSON](/api/v1/entities/20846e33-d270-449e-a05a-a18dfed0de62/player-metrics?days=7)

Chart values are hourly observed maxima. The sampled 24-hour peak and missing intervals carry explicit coverage; history before collection is unknown.

## Sources and freshness

- Catalog membership: store\_catalog

- Catalog observed: 2026\-09\-28T16:58:32\.455488\+00:00

- Details observed: 2026\-09\-23T21:15:45\.372104\+00:00

- Player count observed: Not collected

- Reviews observed: 2026\-09\-23T21:15:46\.420968\+00:00

Full provenance: \{"urls":\{"price":"https://store\.steampowered\.com/app/962540/","catalog":"https://api\.steampowered\.com/IStoreService/GetAppList/v1/","details":"https://store\.steampowered\.com/app/962540/","players":null,"reviews":"https://store\.steampowered\.com/appreviews/962540"\},"price":"2026\-09\-23T21:15:45\.372104\+00:00","source":"steam","catalog":"2026\-09\-28T16:58:32\.455488\+00:00","country":"US","details":"2026\-09\-23T21:15:45\.372104\+00:00","players":null,"reviews":"2026\-09\-23T21:15:46\.420968\+00:00","language":"en","editorial":null,"membership":"store\_catalog","observations":\{"price":"c5e9d869\-1dd2\-4d35\-a4a4\-ac2d32b539ac","catalog":"b46ce44d\-0dd2\-4dea\-9fe5\-f59149bfe4f3","details":"9e15ff9e\-279d\-4881\-8c8f\-01d91ab6bde0","players":null,"reviews":"fce77c95\-5377\-4774\-935f\-e28dca66cf5e"\},"reviewFilters":\{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}\}

Native rating methodology: \{"count":0,"average":null,"entityId":"20846e33\-d270\-449e\-a05a\-a18dfed0de62","revision":0,"observedAt":null,"methodology":"arithmetic\-v1","distribution":\[0,0,0,0,0,0,0,0,0,0\]\}

Steam reviews are not Summer DB votes. Missing data is not zero. Player counts are observations, not historical peaks. A supplemental record does not establish that a game was delisted.

[Steam store](https://store.steampowered.com/app/962540/) · [JSON](/api/v1/games/20846e33-d270-449e-a05a-a18dfed0de62)