Ad Fundum

If you spent any time on the internet in the mid-2000s digging ever deeper into the earth in the Flash game Motherload, Ad Fundum wants you to know exactly who its spiritual successor is aimed at. You pilot a hulking dieselpunk mining mech, drilling through rock, managing fuel and heat, and hauling minerals back to the surface for profit, in a world recovering uneasily from a Great War. This review's sample shows a genuine, well-earned nostalgia for the formula, paired with real, specific friction that keeps this from being an unqualified recommendation.

A genuine, substantial improvement on a beloved original

The comparison to Motherload isn't a passing mention in this sample — it's the central organizing frame nearly every reviewer uses. "If you're looking for a game similar to 'Super Motherload,' 'Ad Fundum' is, in my opinion, a better version. It does many things similarly to the aforementioned game, but offers several improvements, more variety, and some quality-of-life enhancements," one reviewer writes. Another, with over a thousand minutes logged, goes further: "Simultaneously scratches the Motherlode/Mega Miner nostalgia itch and refreshes the genre with modern and inventive mechanics like biomes, cave-ins, New Game+, a moderately interesting storyline." A third sums up the appeal bluntly and warmly: "Motherload, but way better and cheaper. 10/10." That's a remarkably consistent verdict from an audience with real, specific point of comparison, and it speaks to the developer clearly understanding what made the original beloved before building meaningfully past it.

Where the digging itself starts to grate

Set against that praise, the negative sample converges on a problem that strikes right at the genre's core mechanical identity: the feel of digging itself. "Digging is either too fast or too slow. Often times you'll accidentally dig in a direction you didn't mean to just because the game is so quick to dig. Movement feels like you're running on ice," one reviewer writes in detail. Another agrees with real frustration: "Could be a great game, but the controls are just unbearable. Tried both controller and keyboard. How often I accidentally mine something while just trying to move is giving me a migraine." A third, having tried it via a discounted bundle despite the game's strong overall rating, reports the same core issue: "The mining doesn't feel good, not satisfying at all and weirdly unresponsive. It's like you have to wrestle a bit with the gam[e's controls]." For a game whose entire loop is built around precise, deliberate digging, this is a meaningful structural complaint rather than a minor annoyance.

A specific late-game section that tests goodwill

A more localized but frequently repeated complaint concerns one particular stretch late in the game. One reviewer, after logging 736 minutes and clearly enjoying much of the experience, writes: "I'm a sucker for mining games, even back to the old Atari computers. And honestly, this game is not bad. Until you get to this maze area where apparently you have to find your dad and can't use explosives... I think I'm done." Another reviewer with over 400 minutes invested describes hitting a similarly frustrating wall: "I enjoyed it until a feature in the last section ABSOLUTELY BOILING MY BLOOD. Like why???, its infuriating and makes this easily a thumbs down now." This is a specific, identifiable design choice rather than a vague pacing complaint, and it's worth flagging directly: a substantial number of otherwise satisfied players report their goodwill running out at exactly the same point.

A serious, documented technical concern

Beyond control feel and pacing, at least one reviewer raises a genuinely serious technical issue: "You can't manually save, sometimes its bugged and it doesn't save at all, then your game is [ruined] and you can't progress anymore, if you die or leave the game you lose everything." That's a much more severe complaint than a design quibble — the risk of losing substantial progress to a save-system bug is the kind of thing that should factor directly into how cautiously a new player approaches long sessions, and this review takes it seriously as a concrete, reported risk rather than dismissing it as an isolated fluke.

A direct comparison worth naming

Interestingly, at least one reviewer draws a direct comparison to another mining-roguelite this publication has separately reviewed: "Go play (Super) Mining Mechs, you will have a much better time." That's a fair, specific data point for readers deciding between similar games in this smaller genre niche, though this review's own assessment is that Ad Fundum's genuine content expansion over Motherload still earns it real credit on its own terms, control complaints notwithstanding.

What the achievement data shows about depth

Steam's own completion figures support the picture of a game with real, substantial depth beyond its core loop. An early milestone sits at 82.8%, falling gradually through mid-game achievements in the 40-60% range, down to just 6.6% for full-collection completion. That's a healthy, gradual curve rather than an unusually steep cliff, consistent with a game that rewards sustained engagement without artificially gatekeeping its late content behind unreasonable difficulty spikes — aside from the specific maze section reviewers single out.

An outstanding record of ongoing support

Whatever this review's control and bug-related criticisms, they exist alongside one of the most actively supported release histories in this entire review series. Ad Fundum's partner-events feed documents dozens of hotfixes and updates in the year following launch, added support for Linux, macOS, and Steam Deck, a full soundtrack release, and — as recently as 2027 — console ports across PlayStation, Xbox, and Nintendo Switch. Few small studios sustain this level of continued investment in a ten-dollar mining game for this long.

Final verdict

Ad Fundum is a genuinely substantial, thoughtfully expanded successor to a beloved Flash-game classic, earning real and specific praise from an audience that knows exactly what it's being compared to — but its imprecise digging controls, a widely disliked late-game section, and at least one documented save-corruption risk are real, concrete concerns this review takes seriously rather than waving away as nostalgia-blinded nitpicking. Motherload fans should find plenty to love here; just save often, and brace for the maze.