Very fun but quick game.

Idle & Incremental Lovers reviewed Towerix91 and gives it a neutral/informational review :
While the idea of the Towerix91 (tower defense + incremental) was promising, it offers a way too easy and bland experience. The retro visuals and amazing Win91 type UI may still make it worth it.

+ The original idea is great
+ The early 90's visuals are on spot and make old dogs like me feel very nostalgic, particularly for the "Win91" type UI
+/- The Tower Defense part, while being based on solid foundations and mechanics, doesn't need your brain to function since you're too easily OP
- Poor balance makes the progression way too easy, challenge waves making the early "grind" a breeze and and giving no challenge for the rest of the game
- Nothing happens when you finish the last level... disappointing.
All in all, if you're here for the nostalgia, buy Towerix91, if you're here for the gameplay, maybe you should pass on this one. Still recommended for the right audience, so.
By the way, did you know you can reach peak humor with tower jokes? They always stand tall, never fall flat.
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A short and sweet little tower defense game. The demo was fun, but the $4 was worth being able to complete the game fully. 9/10

The only thing I could really ask for is more levels, but that might require more upgrades and/or abilities, and that may not be worth the dev's time.