Key art for One Tower Defense

Game review

One Tower Defense

5.5 / 10

Developer
Sunburn
Publisher
Sunburn
Released
18 June 2026
Platforms
Windows
Genre
Action, Indie, Strategy
Monetisation
paid
Players
true

The short version

Biggest strengths

  • A genuinely distinctive concept within the tower defense genre, defending and upgrading a single tower rather than placing many, that reviewers found addictive
  • Tons of weapons and upgrade paths, giving builds real surface-level variety even if not all of them are currently balanced
  • Strong, consistent core gameplay loop that longtime demo players say carried over intact from its earlier public builds

Biggest weaknesses

  • Launch-week bugs reviewers called game-breaking, including HP regeneration not functioning and enemies that couldn't be targeted at all on certain maps
  • A weapon targeting system that queues shots rather than firing all weapons independently, making ranged enemies especially punishing in the mid-game
  • No meaningful unlocks or meta-progression between runs, which multiple reviewers said makes repeated sessions feel pointless and the game grow stale quickly

Who it's for: Tower defense fans looking for a fresh, single-tower twist on the genre who don't mind rough launch bugs and a currently shallow meta-progression loop, treated as a rewarding but unpolished $10 static tower defense rather than a sprawling roguelike

Our recommendation: recommended with caveats

5.5 / 10

A single tower, endlessly upgraded

One Tower Defense strips its genre down to one core idea: instead of placing dozens of towers across a map, players build up and upgrade a single central tower against endless waves of enemies, choosing weapons and defensive upgrades as they go. Reviewers who'd followed the game since its pre-release demo consistently praised how well that hook translates into a full release. One wrote: "The core gameplay hasn't changed, which is great. It's literally a static tower defense for $10. You know what you're getting." A separate reviewer who'd sunk real time into the release build described losing track of time entirely: "I played for over 3 hours and it felt like ten minutes. Can't wait to see what they do moving forward." Even the pool's most exhaustively detailed critical review, itself focused almost entirely on balance complaints, opened by crediting the underlying design: "Overall, the game has an excellent foundation and is genuinely addicting. Most of these issues are balance-related rather than core design problems."

Launch bugs reviewers called game-breaking

The most immediate and consistent complaint in the pool concerned bugs present at launch, several of which reviewers described as breaking core systems entirely. One reviewer who'd been anticipating the release after a delay from April wrote: "There's lots of game breaking bugs. Mostly with unit targeting just not working. Some units, seems very inconsistent, just won't be hit by any projectiles. Armor feels completely functionless compared to how it was in the demo. HP regen doesn't factor in." A second reviewer independently confirmed the same core issues: "Launch on One Tower was full of game breaking bugs, HP regen not working, monsters not being able to be targeted, problems in map 3." That reviewer credited the developer's response even while criticizing the launch state: "Dev is responding in discord with 2 patches so far, but honestly they should have been fixed before launch."

A targeting system that punishes ranged enemies

Beyond outright bugs, reviewers identified a deeper mechanical issue in how the tower's multiple weapons handle targeting. One detailed negative review explained the problem specifically: "As you progress and have multiple weapons it feels like the weapons are in que for their turn to shoot instead of all weapons firing independently. Weapons targeting mechanic is game breaking the most at this point since it prioritise closest target regardless of weapon... especially at mid stage when you face range enemies which gets ignore by your weapons and end up being killed because of it." That same reviewer singled out one specific weapon type as effectively non-functional as a result: "Field weapons are completely useless at this point due to it's lack of rate of fire combine with short range, once you face against range unit its game over due to the range difference." The pool's longest and most technically detailed review independently reached the identical conclusion about that weapon category, describing it as lacking "a stage of the game where it truly shines" regardless of when it's picked up during a run.

No meta-progression, and an economy that narrows player choice

A separate cluster of complaints concerned long-term structure rather than launch bugs specifically. One reviewer laid out the problem plainly: "NO unlocks. So you start with everything, except cosmetics... I can see this getting repetitive after a couple hours, especially with very little progression and no to little unlocks or meta progression." A shorter, more blunt review reached the same conclusion from a different angle: "There's zero upgradability to the main game. So essentially every time you restart a game, you start all over... No progression, gets extremely boring." The pool's most detailed reviewer connected this structural gap directly to build diversity, describing an income and bounty economy that discourages experimentation: "Bounty becomes a poor long-term investment because monster density resets too often," and further detailing how currency-based weapon-upgrade trees leave certain builds, like Toxic and Lightning weapons, capped out and uncompetitive in the late game while "there are simply too many Gem upgrade options" by comparison. That reviewer also flagged a related difficulty-scaling problem on later maps: "It seems like almost nobody can get past the 20-minute mark on the final map," attributing the wall less to interesting new challenges than to enemies that are simply the same as earlier maps with inflated stats.

Content requests point at a game its own players want to see grow

Beyond bugs and balance, the pool's most detailed review functioned less like a traditional critique and more like a running wishlist for the game's next patches, suggesting the reviewer base is invested rather than dismissive. Among the specific asks: a monster directory or bestiary "so players can learn what each enemy does," bosses that stand out more clearly from regular enemy waves since "it's too easy for them to get lost in the crowd," and a rethink of how new terrain maps scale difficulty. That reviewer argued new maps should differentiate themselves through distinct enemy rosters with different abilities rather than simply raising every stat: "I'd much rather fight new, terrain-specific enemies that change how I play than simply face enemies with massively increased health and damage. The maps would be far more memorable and interesting if they stood out because of their unique monster rosters instead of being known only for being nearly impossible." A separate reviewer's complaint about multiplayer echoed the sense of a feature still finding its footing rather than being fundamentally broken: "Multiplayer, although I have not been able to find a game yet, might be too early," suggesting a thin launch-week playerbase rather than a structurally unworkable matchmaking system.

Verdict

One Tower Defense has a genuinely fresh hook for the tower defense genre and a core loop reviewers, including skeptics, agree is worth building on. But its launch build shipped with real, independently-confirmed bugs around targeting and HP regeneration, a weapon-targeting system that leaves certain builds and weapon types close to unplayable against ranged enemies, and a near-total absence of meta-progression that several reviewers said makes repeated sessions feel pointless rather than rewarding. It's an addictive $10 idea with real promise, but right now it's an idea still waiting on the balance and bug-fixing pass its own reviewers are asking for.

Pros and cons

Pros

  • A genuinely distinctive concept within the tower defense genre, defending and upgrading a single tower rather than placing many, that reviewers found addictive
  • Tons of weapons and upgrade paths, giving builds real surface-level variety even if not all of them are currently balanced
  • Strong, consistent core gameplay loop that longtime demo players say carried over intact from its earlier public builds
  • Both single-player and multiplayer modes, even if matchmaking was reported as difficult to use at launch

Cons

  • Launch-week bugs reviewers called game-breaking, including HP regeneration not functioning and enemies that couldn't be targeted at all on certain maps
  • A weapon targeting system that queues shots rather than firing all weapons independently, making ranged enemies especially punishing in the mid-game
  • No meaningful unlocks or meta-progression between runs, which multiple reviewers said makes repeated sessions feel pointless and the game grow stale quickly
  • An income and bounty economy reviewers described as unbalanced, funneling players into the same handful of viable early-game strategies

Category scores

Category scores are the reviewer's read on each area. They inform the overall score but do not average into it — the number at the top of the page is a judgement, not a calculation.

  • Gameplay 5.5 / 10
  • Performance 4.5 / 10
  • Value 5 / 10
  • Originality 7.5 / 10