The niche at a glance

Tower Defense on Steam: 4,024 released games, 1,496 in the last 12 months, 1,965 announced and still unreleased. Median lifetime reviews: 6. 56% of them never reached 10 reviews. Free to play: 9%. Tower Defense is a Steam store tag, applied by the developer and refined by players; a game carries several tags at once, so niche counts overlap and do not add up to the size of the Steam catalogue. Data as of .

What releases end up with

lifetime reviews · released 3 years ago to 90 days ago · failures included1,726 releases
p100
p251
median6
p7529
p90197
56% of them never reached 10 reviewsMedian price $4.99 · 9% free-to-play

Releases per year

outcomes count only games released more than 90 days ago, anything newer has not had time to gather reviews
2019
116med 30 · 28% unseen
2020
165med 19 · 36% unseen
2021
216med 17 · 38% unseen
2022
247med 13 · 44% unseen
2023
349med 11 · 47% unseen
2024
550med 11 · 49% unseen
2025
556med 6 · 56% unseen
2026
941med 3 · 66% unseen · 412 too fresh

Tower Defense × setting: what the pairings end up with

every setting tag shipped with Tower Defense at least 5 times · same window× setting× presentation
share reaching 500 reviews, shrunk towards the catalogue · click a row to open the concept
Tower Defense ×3 y12 mmedian≥500adjusted vs chancelast hitwho made it
Psychological Horror15519under 2015.2%
avoided ×0.10343 d
Desktop Defender
METAL SLUG ATTACK RELOADED
Deck of Haunts
Desktop Defender · METAL SLUG ATTACK RELOADED · Deck of Haunts
Survival Horror2661019.2% 9%–38%13.8%
avoided ×0.29187 d
Night of the Dead
METAL SLUG ATTACK RELOADED
KUNKUN Defender
Night of the Dead · METAL SLUG ATTACK RELOADED · KUNKUN Defender
Steampunk13239under 2010.1%
cliché ×2.33551 d
Castle Of Alchemists
Dream Engines: Nomad Cities
Castle Of Alchemists · Dream Engines: Nomad Cities
Zombies126361110.3% 6%–17%9.8%
cliché ×2.79123 d
7 Days to Die
Diplomacy is Not an Option
Night of the Dead
7 Days to Die · Diplomacy is Not an Option · Night of the Dead
Mining36181511.1% 4%–25%9.5%
cliché ×2.45189 d
The Spotter: Dig or Die
Wall World 2
Epic Auto Towers
The Spotter: Dig or Die · Wall World 2 · Epic Auto Towers
War1654969.7% 6%–15%9.4%
cliché ×3.83331 d
Diplomacy is Not an Option
Stronghold Crusader: Definitive Edition
Becastled
Diplomacy is Not an Option · Stronghold Crusader: Definitive Edition · Becastled
Historical48111510.4% 5%–22%9.3%
ordinary ×1.04455 d
Diplomacy is Not an Option
Stronghold Crusader: Definitive Edition
Stronghold: Definitive Edition
Diplomacy is Not an Option · Stronghold Crusader: Definitive Edition · Stronghold: Definitive Edition
Horror48141110.4% 5%–22%9.3%
avoided ×0.25187 d
7 Days to Die
Dread Dawn
Deck of Haunts
7 Days to Die · Dread Dawn · Deck of Haunts
Artificial Intelligence2791611.1% 4%–28%9.2%
ordinary ×0.78162 d
Plants vs. Zombies™: Replanted
Northend Tower Defense
Amazons vs Zombies 🔞
Plants vs. Zombies™: Replanted · Northend Tower Defense · Amazons vs Zombies 🔞
Medieval27187119.2% 6%–13%9.0%
cliché ×3.18196 d
Thronefall
Diplomacy is Not an Option
Stronghold Crusader: Definitive Edition
Thronefall · Diplomacy is Not an Option · Stronghold Crusader: Definitive Edition
Post-apocalyptic11744119.4% 5%–16%9.0%
cliché ×1.98162 d
7 Days to Die
Outpost: Infinity Siege
EverSiege: Untold Ages
7 Days to Die · Outpost: Infinity Siege · EverSiege: Untold Ages
LGBTQ+6213under 209.0%
avoided ×0.13809 d
Resist the succubus—The end of the female Knight
Resist the succubus—The end of the female Knight
Romance6213under 209.0%
avoided ×0.08950 d
Guardians of Eden-Embrace of the Forest
Guardians of Eden-Embrace of the Forest
World War I847under 208.3%
cliché ×2.81533 d
Warfare Legacy Collection
Warfare Legacy Collection
Military1083848.3% 4%–15%8.1%
cliché ×3.03342 d
Outpost: Infinity Siege
Diplomacy is Not an Option
Becastled
Outpost: Infinity Siege · Diplomacy is Not an Option · Becastled
30 pairings cleared 20 releases; 69 more never reached 5 and are not listed. Compared against 6.7% for games that carry any tags at all.

About these numbers

“Adjusted” is the share pulled towards the catalogue with the weight of twenty releases: the top of any ranked list is optimistic (out of a hundred pairings one will show 35 % on 23 releases by luck alone), and the adjustment is what stops a small lucky group from leading. The band next to the raw share is the 95 % interval. This list is the same for everyone today; the second opinion is the description-based one on Pitch comps.