Dr. COG

Indie· Visual Novel· Roguelike Deckbuilder· Point & Click

Released Dec 2024

Dr. Cog is a deck-building roguelike game using gears. Operate the memory restoration machine, turn gears, discover and enhance them, and build synergies. Complete the memory restoration within the time limit, recover the client's lost memories, and reach the final chapter.

83% positive · 100 reviews

Done

All announced content has been released

Medium confidence

Done

All announced content has been released

Medium confidence

Where to get it

Free on Steam

Steam Free

Evaluation

Dr. COG launched on December 16, 2024 as a free-to-play deck-building roguelike. In the weeks and months following launch, the developer (Re:ZT1) was actively engaged: they shipped several meaningful updates including new synergies and augments (December 23, 2024), a save system (December 26, 2024), an interactive tutorial (January 4, 2025), Japanese localization (March 18, 2025), and a major quality-of-life overhaul in patch 1.4.3 on January 26, 2026, which added free gear dragging, starter deck rerolling, and improved stat visualization. The December 2024 roadmap mentioned only a tutorial improvement as a near-term plan — which was delivered by January 4, 2025. The most recent developer communication was the January 26, 2026 patch (1.4.3), which contained no announcements of upcoming content, roadmap items, or future plans — just community-driven polish. No unreleased DLC exists on the store. The developer has not announced any further content or updates since January 26, 2026. With no outstanding commitments, no new content announced, and over seven months of silence following a polish-focused final patch, the game appears to have reached its completed state.

Evidence

Patch 1.4.3 shipped with a major gear interaction overhaul, starter pack reroll, and UI improvements — described as driven by player feedback. No future content mentioned. This is the most recent developer communication.

news post · Jan 26, 2026 source content shipped

high

Interactive tutorial stage added, fulfilling the roadmap item announced on December 26, 2024.

news post · Jan 4, 2025 source content shipped

medium

Media

Details

Developer

Re:ZT1

Publisher

Jungle Game Lab

Achievements

Platform

Windows

Controller

—

Steam Deck

Not rated

Players

Single-player

Visual Novel Roguelike Deckbuilder Indie Point & Click Atmospheric Anime RTS Roguelike Strategy 2D Deckbuilding Choices Matter Simulation Sci-fi Free to Play

About this game

Become a memory restoration expert and restore your patient's memories.

Your client has come to you to restore his father's memories. Use Reminiscence Mk.1 to enter his memories and carry out the restoration process, recovering the forgotten memories.

Strategically arrange the gears to maximize memory production.

Memory restoration surgery requires extreme precision. Gears rotating clockwise and counterclockwise directly affect memory production. If you fail to restore the required memory within the time limit, the surgery will end in failure.

Build your own gear deck and create powerful synergy.

utilize gears with unique synergies. Try to create your own synergy strategy by adding, upgrading, or sometimes removing gears to your deck as a reward for each stage clear.