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Hidden Dimensions 3

Hidden Dimensions 3

Hidden Dimensions 3 is a science-fiction themed collectible cards game offering over 500 cards, varied gameplay modes and challenges. Create decks containing spaceships, as well as various structures and actions to support your fleet.

Released Oct 12, 2016 Developer Stijn Van Cauter Platforms Windows StrategyFree to PlayCard GameIndie
View on Steam ↗ Free (US · as of 2026-05-15)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-28.

84.8%positive99 reviews
Recommended · 0 found this helpful

“Its clunky. Graphics aren't great. Some abilities are a little unintuitive. Balance is questionable between factions. But this game is something incredibly special, and gives you complete flexibility in deckbuilding. It's a great game, and it ends up being my between games game…”

— a player, Steam review · 310 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2026-02 via SteamCharts; self-collected from the Steam API since Aug 2026.

25all-time peak
0 5 10 2017 2019 2021 2023 2025 No data collected for this period No data collected for this period No data collected for this period No data collected for this period 8 avg · Oct 2016

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-28.

87achievements
17.6%median completion
15.7%rarest: Crystal Avatar IV
24.6% of players 23.5% of players 23.2% of players 22.8% of players 22.5% of players 21.5% of players 20.1% of players 19.8% of players 19.7% of players 19.7% of players 19.4% of players 19.4% of players 19.1% of players 19.0% of players 19.0% of players 19.0% of players 18.9% of players 18.9% of players 18.8% of players 18.8% of players 18.7% of players 18.7% of players 18.7% of players 18.6% of players 18.5% of players 18.4% of players 18.4% of players 18.4% of players 18.4% of players 18.2% of players 18.1% of players 18.0% of players 18.0% of players 18.0% of players 18.0% of players 17.9% of players 17.9% of players 17.9% of players 17.8% of players 17.7% of players 17.7% of players 17.7% of players 17.6% of players 17.6% of players 17.6% of players 17.6% of players 17.6% of players 17.5% of players 17.5% of players 17.4% of players 17.4% of players 17.4% of players 17.4% of players 17.4% of players 17.3% of players 17.3% of players 17.3% of players 17.2% of players 17.2% of players 17.2% of players 24.6% 0% most earned rarest
Almost everyone has
24.6%Play Artifact actions IV — Play 175 Artifact actions.
23.5%Play Human actions IV — Play 175 Human actions.
23.2%Generate solar IV — Generate 7500 solar energy.
Rarest badges of honor
15.7%Crystal Avatar IV — Reach tier 4 in all achievements in the Crystal Avatar set.
15.7%Collect mercenaries IV — Collect or hire 200 mercenaries.
15.8%Seraphine IV — Reach tier 4 in all achievements in the Seraphine set.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jan 17, 2017
New update V 3.13.010

A larger update was in the works, but there were a few things that seemed critical, so a smaller update has been released first. Patch notes : Fixed a bug in the custom card generator that could resul

Jan 17, 2017
New update V 3.13.010

A larger update was in the works, but there were a few things that seemed critical, so a smaller update has been released first. Patch notes : Fixed a bug in the custom card generator that could resul

Dec 01, 2016
New update V 3.13.009

This update wraps up the recently added sets of new cards. The shipcards from those sets now have matching mercenary cards as well as mercenary bosses. This update also adds background infos to a few

Dec 01, 2016
New update V 3.13.009

This update wraps up the recently added sets of new cards. The shipcards from those sets now have matching mercenary cards as well as mercenary bosses. This update also adds background infos to a few

Nov 17, 2016
Another 12 new cards for HD3

HD3 version 3.13.008 adds the second half of the set of new cards. 12 cards with matching opponents in the tactical game mode are now available. This set consists of 8 dual-color cards and 4 artifact

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-28.

GenresStrategy
Player tagsStrategy · Free to Play · Card Game · Indie (SteamSpy community voting)
FeaturesSingle-player · Family Sharing
LanguagesEnglish
Achievements87
Official sitehttp://nulll-void.com/games/
Minimum system requirements (PC)

Minimum: OS *: windows xp Processor: 2 GHz Intel Pentium 4 or equivalent Memory: 500 MB RAM Graphics: must support OpenGL 2.0 Storage: 300 MB available space