CyberGrid: Tower defense

Introduction

CyberGrid: Tower defense is a free strategy game from solo developer Rania Rizki Arinta, released on Steam on 26 March 2021. The premise is straightforward: place resource-gathering buildings and defensive towers around a central HQ, hold off waves of enemies, and expand as resources allow, all wrapped in a minimalist cyberpunk visual theme. Nearly five years after release, the game has attracted just 11 English-language reviews — this review read every single one.

A thin, consistent, mostly negative sample

The aggregate — Mostly Negative — undersells how consistent the complaints actually are given how few voices are in the sample. The most-upvoted review in the set doesn't mince words, calling the game "riddled with bugs, imbalanced" and comparing its visual polish unfavourably to browser games of an earlier era. More specific negative reviews echo the same shape from different angles: "terrible game design, absolutely zero tutorial, and its near impossible to get past wave six," reads one. Another, more measured, review lists concrete issues after a longer session: no tutorial, the game running noticeably too fast, resource buildings and the home base taking damage far quicker than seems intentional, unclear structure-placement footprints causing "cannot place that here" errors, and tower bullets freezing mid-air when retargeting. That reviewer reached wave 24 only by placing towers indiscriminately rather than with any real strategy — a sign the core balance isn't rewarding thoughtful play the way a tower defense game should. Set against that, the three positive reviews in the sample are brief and don't dispute the specific complaints so much as shrug them off; none argue the bugs or thin content don't exist.

The Builder-Defender question

One negative review, the most-upvoted in the entire sample, makes an unusually specific claim: that CyberGrid "is a Udemy course game (from yt Code Monkey, Builder-Defender course) with very minor tweaks to it," and that "the code was provided in the course." This review independently checked that claim rather than reporting it as settled fact. Code Monkey's "Builder-Defender" course is real and well documented — a 10-hour, 56-lecture Unity course, also sold on Udemy, that teaches exactly the structure CyberGrid ships with: an HQ that can defend itself, resource-gathering buildings placed near the materials they harvest, and placeable towers for additional defense. That correspondence between the course's own described curriculum and CyberGrid's feature set is genuine and striking. What this review cannot do is confirm how much of the shipped game's actual code differs from the course's starting materials — that would require access neither Steam nor the public course listing provides. The honest framing is this: a specific, named, checkable claim was made by a reviewer, and independent verification confirms the course exists and matches the game's structure closely enough that the claim is plausible, not merely invented — short of that, this review can't call it confirmed.

Verdict

CyberGrid: Tower defense costs nothing to try, and its cyberpunk framing and core tower-defense structure are a legitimate, recognisable shape. But every account in an admittedly tiny review sample — 11 reviews across nearly five years — describes the same problems: no onboarding, balance that punishes rather than rewards careful play, specific and repeated bugs, and a small handful of building types that leaves little room to grow. A live concurrent-player check for this review returned zero, matching reviewer reports that the game barely found an audience even at launch. Free is free, but there's very little evidence here of a game that rewards the time spent finding that out.