Steam releases · Week 18, 2015

Who takes the attention in this window · releases grouped by the observed scale of their publisher

WEEK 18 ’1527 Apr – 3 May 201565 releasesMTWTFSS

week 18 of 2015 at a glance

In week 18 of 2015 (27 Apr – 3 May 2015), 65 games released on Steam, and 4 of them shipped with a playable demo. The most anticipated is Kerbal Space Program (303,673 followers). Compared with the same window a year earlier (39 releases), it is 67 % busier. Data as of 2026-10-28.

window at a glance
Releases	65
With a playable demo	4
Median followers, top 20 by demand	2,168
Free to play, of 61 with a known price	8 %
Same window a year earlier	39 (+67 %)
Data as of	2026-10-28

most anticipated, top 10 by demand
Game	Release	Followers
Kerbal Space Program	2015-04-27	303,673
Exanima	2015-04-29	96,938
Order of Battle: World War II	2015-04-30	19,173
Space Colony: Steam Edition	2015-04-30	9,050
METAL SLUG DEFENSE	2015-05-01	5,825
Sky Force Anniversary	2015-04-29	5,421
STAR WARS™ X-Wing vs TIE Fighter - Balance of Power Campaigns™	2015-04-28	2,744
Ultimate Tic-Tac-Toe	2015-04-28	2,329
CopperCube 5 Game Engine	2015-05-01	2,168
Esenthel Engine	2015-04-27	2,136

Popular Upcoming, wishlist rank and demand score are defined in Help.

Mosaic ListPublishers

classreleasespeak playersmedianp90kept at 5w

Majorpublisher median 5,000+ reviews

——too few

Largepublisher median 1,000–5,000

66%

——too few

Midpublisher median 200–1,000

——too few

Smallpublisher median 50–200

——too few

Micropublisher median under 50

——too few

Self-publishedno external publisher

17%

——too few

Class is the observed scale of a publisher’s portfolio: the median review count of what they released over the last 36 months. Budgets are invisible to us, so these are not the industry’s AAA and AA labels.Peak players is the highest concurrent count since release. “Kept at 5w” compares the fifth week against the first-week peak, counting only releases with at least 20 concurrent players.Concurrent players are observed from 2026-07-19 onward. Releases before that date have no player columns, and that is a gap in our watching, not a zero.