Single-player games like ProTax 98
Below are 8 single-player Steam games similar to ProTax 98, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like ProTax 98 page.
Ranked picks
- 1
Human.exe
Single-player alternative to ProTax 98 — playable solo, no multiplayer required.
An AI has isolated the mind of a philosophy professor to evaluate human morality. As the terminal operator, you access files, run programs, and take his consciousness through ethical dilemmas. Your decisions will train the AI's final algorithm.
- 2
Last Draft
Single-player alternative to ProTax 98 — playable solo, no multiplayer required.
Complete your last draft before sunrise while enduring increasing paranormal activities and relentless monster stalks. Use your typing skills to progress and your instincts to hide, surviving 7 days of pure psychological horror.
- 3
Valley of Shadows
Single-player alternative to ProTax 98 — playable solo, no multiplayer required. Shares Adventure with ProTax 98.
Valley of Shadows is a short psychological horror set in an ordinary American suburb. Players navigate as James, a family man seeking answers about his missing family, while grappling with paranoia and supernatural forces.
- 4
Snowsquall Grip
Single-player alternative to ProTax 98 — playable solo, no multiplayer required. Shares Adventure with ProTax 98.
Escape the snowy nightmare or be trapped forever — your call.
- 5
Cats With Standards
Single-player alternative to ProTax 98 — playable solo, no multiplayer required. Shares Adventure with ProTax 98.
Horror Visual Novel where Cats claw through filth for bones and whisper lies to mirrors. Find the Hidden-Objects, obey, smile, and repeat until the lines between rule and ruin blur, and you’re left meowing into the void.
- 6
Next Player
Single-player alternative to ProTax 98 — playable solo, no multiplayer required. Shares Adventure with ProTax 98.
You boot an unmarked cartridge on an old CRT TV. It looks like an ordinary platformer. It isn't. A 30-minute, single-room, first-person psychological horror where the game on the screen refuses to stay on the screen—and starts playing with you.
- 7
Amanda the Adventurer 3
Single-player alternative to ProTax 98 — playable solo, no multiplayer required. Shares Adventure with ProTax 98.
In the thrilling conclusion of the Amanda the Adventurer trilogy, follow Riley as they uncover the ultimate secrets behind Amanda, Hameln, and mysteries that have plagued Kensdale for decades.
- 8
s.p.l.i.t
Single-player alternative to ProTax 98 — playable solo, no multiplayer required.
A short psychological horror game, where you attempt to gain root access into an unethical superstructure.